Finding the Fourth Proportional to 185,131.86, 277,710.75 and 91,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   185,131.86 : 277,710.75 = 91,612.50 : x
2. Step 2: Convert to fraction form
   185,131.86/277,710.75 = 91,612.50/x
3. Step 3: Cross multiply
   185,131.86x = 277,710.75 × 91,612.50
4. Step 4: Simplify right side
   185,131.86x = 25,441,776,084.38
5. Step 5: Solve for x
   x = 25,441,776,084.38/185,131.86
6. Step 6: Final answer
   x = 137,425.16