Finding the Fourth Proportional to 78,678,356,395.17, 108,576,458,952.81 and 42,549,388,818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,678,356,395.17 : 108,576,458,952.81 = 42,549,388,818.82 : x
2. Step 2: Convert to fraction form
   78,678,356,395.17/108,576,458,952.81 = 42,549,388,818.82/x
3. Step 3: Cross multiply
   78,678,356,395.17x = 108,576,458,952.81 × 42,549,388,818.82
4. Step 4: Simplify right side
   78,678,356,395.17x = 4,619,861,968,553,762,619,392
5. Step 5: Solve for x
   x = 4,619,861,968,553,762,619,392/78,678,356,395.17
6. Step 6: Final answer
   x = 58,718,333,481.07