Finding the Fourth Proportional to 112,658.60, 155,476.31 and 64,914.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,658.60 : 155,476.31 = 64,914.98 : x
2. Step 2: Convert to fraction form
   112,658.60/155,476.31 = 64,914.98/x
3. Step 3: Cross multiply
   112,658.60x = 155,476.31 × 64,914.98
4. Step 4: Simplify right side
   112,658.60x = 10,092,740,452.17
5. Step 5: Solve for x
   x = 10,092,740,452.17/112,658.60
6. Step 6: Final answer
   x = 89,586.95