Finding the Fourth Proportional to 112,658.50, 155,468.87 and 70,217

Step by Step Solution

1. Step 1: Write the proportion equation
   112,658.50 : 155,468.87 = 70,217 : x
2. Step 2: Convert to fraction form
   112,658.50/155,468.87 = 70,217/x
3. Step 3: Cross multiply
   112,658.50x = 155,468.87 × 70,217
4. Step 4: Simplify right side
   112,658.50x = 10,916,557,644.79
5. Step 5: Solve for x
   x = 10,916,557,644.79/112,658.50
6. Step 6: Final answer
   x = 96,899.55