Finding the Fourth Proportional to 136,753.42, 188,493.85 and 91,414.87

Step by Step Solution

1. Step 1: Write the proportion equation
   136,753.42 : 188,493.85 = 91,414.87 : x
2. Step 2: Convert to fraction form
   136,753.42/188,493.85 = 91,414.87/x
3. Step 3: Cross multiply
   136,753.42x = 188,493.85 × 91,414.87
4. Step 4: Simplify right side
   136,753.42x = 17,231,140,793.55
5. Step 5: Solve for x
   x = 17,231,140,793.55/136,753.42
6. Step 6: Final answer
   x = 126,001.53