Finding the Fourth Proportional to 93,385.56, 129,417.27 and 91,613.40

Step by Step Solution

1. Step 1: Write the proportion equation
   93,385.56 : 129,417.27 = 91,613.40 : x
2. Step 2: Convert to fraction form
   93,385.56/129,417.27 = 91,613.40/x
3. Step 3: Cross multiply
   93,385.56x = 129,417.27 × 91,613.40
4. Step 4: Simplify right side
   93,385.56x = 11,856,356,123.42
5. Step 5: Solve for x
   x = 11,856,356,123.42/93,385.56
6. Step 6: Final answer
   x = 126,961.34