Finding the Fourth Proportional to 87,379.99, 120,583.23 and 49,139.52

Step by Step Solution

1. Step 1: Write the proportion equation
   87,379.99 : 120,583.23 = 49,139.52 : x
2. Step 2: Convert to fraction form
   87,379.99/120,583.23 = 49,139.52/x
3. Step 3: Cross multiply
   87,379.99x = 120,583.23 × 49,139.52
4. Step 4: Simplify right side
   87,379.99x = 5,925,402,555.86
5. Step 5: Solve for x
   x = 5,925,402,555.86/87,379.99
6. Step 6: Final answer
   x = 67,811.90