Finding the Fourth Proportional to 42,762.47, 64,087.17 and 30,955.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42,762.47 : 64,087.17 = 30,955.70 : x
2. Step 2: Convert to fraction form
   42,762.47/64,087.17 = 30,955.70/x
3. Step 3: Cross multiply
   42,762.47x = 64,087.17 × 30,955.70
4. Step 4: Simplify right side
   42,762.47x = 1,983,863,208.37
5. Step 5: Solve for x
   x = 1,983,863,208.37/42,762.47
6. Step 6: Final answer
   x = 46,392.62