Finding the Fourth Proportional to 87,131.86, 120,255.56 and 48,906.91

Step by Step Solution

1. Step 1: Write the proportion equation
   87,131.86 : 120,255.56 = 48,906.91 : x
2. Step 2: Convert to fraction form
   87,131.86/120,255.56 = 48,906.91/x
3. Step 3: Cross multiply
   87,131.86x = 120,255.56 × 48,906.91
4. Step 4: Simplify right side
   87,131.86x = 5,881,327,849.92
5. Step 5: Solve for x
   x = 5,881,327,849.92/87,131.86
6. Step 6: Final answer
   x = 67,499.17