Finding the Fourth Proportional to 87,300.18, 120,469.68 and 49,572

Step by Step Solution

1. Step 1: Write the proportion equation
   87,300.18 : 120,469.68 = 49,572 : x
2. Step 2: Convert to fraction form
   87,300.18/120,469.68 = 49,572/x
3. Step 3: Cross multiply
   87,300.18x = 120,469.68 × 49,572
4. Step 4: Simplify right side
   87,300.18x = 5,971,922,976.96
5. Step 5: Solve for x
   x = 5,971,922,976.96/87,300.18
6. Step 6: Final answer
   x = 68,406.77