Finding the Fourth Proportional to 81,426.82, 121,959.78 and 62,568.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,426.82 : 121,959.78 = 62,568.04 : x
2. Step 2: Convert to fraction form
   81,426.82/121,959.78 = 62,568.04/x
3. Step 3: Cross multiply
   81,426.82x = 121,959.78 × 62,568.04
4. Step 4: Simplify right side
   81,426.82x = 7,630,784,393.43
5. Step 5: Solve for x
   x = 7,630,784,393.43/81,426.82
6. Step 6: Final answer
   x = 93,713.40