Finding the Fourth Proportional to 78,776.68, 108,710.22 and 42,967

Step by Step Solution

1. Step 1: Write the proportion equation
   78,776.68 : 108,710.22 = 42,967 : x
2. Step 2: Convert to fraction form
   78,776.68/108,710.22 = 42,967/x
3. Step 3: Cross multiply
   78,776.68x = 108,710.22 × 42,967
4. Step 4: Simplify right side
   78,776.68x = 4,670,952,022.74
5. Step 5: Solve for x
   x = 4,670,952,022.74/78,776.68
6. Step 6: Final answer
   x = 59,293.59