Finding the Fourth Proportional to 134,109.45, 185,045.31 and 91,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   134,109.45 : 185,045.31 = 91,123.02 : x
2. Step 2: Convert to fraction form
   134,109.45/185,045.31 = 91,123.02/x
3. Step 3: Cross multiply
   134,109.45x = 185,045.31 × 91,123.02
4. Step 4: Simplify right side
   134,109.45x = 16,861,887,484.04
5. Step 5: Solve for x
   x = 16,861,887,484.04/134,109.45
6. Step 6: Final answer
   x = 125,732.28