Finding the Fourth Proportional to 464,089.50, 696,250.89 and 131,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   464,089.50 : 696,250.89 = 131,665.50 : x
2. Step 2: Convert to fraction form
   464,089.50/696,250.89 = 131,665.50/x
3. Step 3: Cross multiply
   464,089.50x = 696,250.89 × 131,665.50
4. Step 4: Simplify right side
   464,089.50x = 91,672,221,557.30
5. Step 5: Solve for x
   x = 91,672,221,557.30/464,089.50
6. Step 6: Final answer
   x = 197,531.34