Finding the Fourth Proportional to 90,300.10, 124,612.88 and 52,059.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,300.10 : 124,612.88 = 52,059.72 : x
2. Step 2: Convert to fraction form
   90,300.10/124,612.88 = 52,059.72/x
3. Step 3: Cross multiply
   90,300.10x = 124,612.88 × 52,059.72
4. Step 4: Simplify right side
   90,300.10x = 6,487,311,641.19
5. Step 5: Solve for x
   x = 6,487,311,641.19/90,300.10
6. Step 6: Final answer
   x = 71,841.69