Finding the Fourth Proportional to 87,068.19, 120,145.71 and 48,829.31

Step by Step Solution

1. Step 1: Write the proportion equation
   87,068.19 : 120,145.71 = 48,829.31 : x
2. Step 2: Convert to fraction form
   87,068.19/120,145.71 = 48,829.31/x
3. Step 3: Cross multiply
   87,068.19x = 120,145.71 × 48,829.31
4. Step 4: Simplify right side
   87,068.19x = 5,866,632,151.69
5. Step 5: Solve for x
   x = 5,866,632,151.69/87,068.19
6. Step 6: Final answer
   x = 67,379.74