Finding the Fourth Proportional to 87,436.34, 120,658.65 and 49,196.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,436.34 : 120,658.65 = 49,196.69 : x
2. Step 2: Convert to fraction form
   87,436.34/120,658.65 = 49,196.69/x
3. Step 3: Cross multiply
   87,436.34x = 120,658.65 × 49,196.69
4. Step 4: Simplify right side
   87,436.34x = 5,936,006,199.87
5. Step 5: Solve for x
   x = 5,936,006,199.87/87,436.34
6. Step 6: Final answer
   x = 67,889.46