Finding the Fourth Proportional to 87,100.17, 120,198.15 and 49,374.42

Step by Step Solution

1. Step 1: Write the proportion equation
   87,100.17 : 120,198.15 = 49,374.42 : x
2. Step 2: Convert to fraction form
   87,100.17/120,198.15 = 49,374.42/x
3. Step 3: Cross multiply
   87,100.17x = 120,198.15 × 49,374.42
4. Step 4: Simplify right side
   87,100.17x = 5,934,713,941.32
5. Step 5: Solve for x
   x = 5,934,713,941.32/87,100.17
6. Step 6: Final answer
   x = 68,136.65