Finding the Fourth Proportional to 87,123.76, 120,267.50 and 58,867.72

Step by Step Solution

1. Step 1: Write the proportion equation
   87,123.76 : 120,267.50 = 58,867.72 : x
2. Step 2: Convert to fraction form
   87,123.76/120,267.50 = 58,867.72/x
3. Step 3: Cross multiply
   87,123.76x = 120,267.50 × 58,867.72
4. Step 4: Simplify right side
   87,123.76x = 7,079,873,515.10
5. Step 5: Solve for x
   x = 7,079,873,515.10/87,123.76
6. Step 6: Final answer
   x = 81,262.26