Finding the Fourth Proportional to 87,636.72, 120,935.52 and 49,398.24

Step by Step Solution

1. Step 1: Write the proportion equation
   87,636.72 : 120,935.52 = 49,398.24 : x
2. Step 2: Convert to fraction form
   87,636.72/120,935.52 = 49,398.24/x
3. Step 3: Cross multiply
   87,636.72x = 120,935.52 × 49,398.24
4. Step 4: Simplify right side
   87,636.72x = 5,974,001,841.48
5. Step 5: Solve for x
   x = 5,974,001,841.48/87,636.72
6. Step 6: Final answer
   x = 68,167.79