Finding the Fourth Proportional to 87,086.95, 120,189.90 and 48,856.71

Step by Step Solution

1. Step 1: Write the proportion equation
   87,086.95 : 120,189.90 = 48,856.71 : x
2. Step 2: Convert to fraction form
   87,086.95/120,189.90 = 48,856.71/x
3. Step 3: Cross multiply
   87,086.95x = 120,189.90 × 48,856.71
4. Step 4: Simplify right side
   87,086.95x = 5,872,083,089.23
5. Step 5: Solve for x
   x = 5,872,083,089.23/87,086.95
6. Step 6: Final answer
   x = 67,427.82