Finding the Fourth Proportional to 87,499.50, 120,749.31 and 47,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,499.50 : 120,749.31 = 47,755.50 : x
2. Step 2: Convert to fraction form
   87,499.50/120,749.31 = 47,755.50/x
3. Step 3: Cross multiply
   87,499.50x = 120,749.31 × 47,755.50
4. Step 4: Simplify right side
   87,499.50x = 5,766,443,673.71
5. Step 5: Solve for x
   x = 5,766,443,673.71/87,499.50
6. Step 6: Final answer
   x = 65,902.59