Finding the Fourth Proportional to 93,155.88, 128,513.58 and 62,931.48

Step by Step Solution

1. Step 1: Write the proportion equation
   93,155.88 : 128,513.58 = 62,931.48 : x
2. Step 2: Convert to fraction form
   93,155.88/128,513.58 = 62,931.48/x
3. Step 3: Cross multiply
   93,155.88x = 128,513.58 × 62,931.48
4. Step 4: Simplify right side
   93,155.88x = 8,087,549,789.50
5. Step 5: Solve for x
   x = 8,087,549,789.50/93,155.88
6. Step 6: Final answer
   x = 86,817.38