Finding the Fourth Proportional to 117,865.76, 162,658.17 and 64,154.25

Step by Step Solution

1. Step 1: Write the proportion equation
   117,865.76 : 162,658.17 = 64,154.25 : x
2. Step 2: Convert to fraction form
   117,865.76/162,658.17 = 64,154.25/x
3. Step 3: Cross multiply
   117,865.76x = 162,658.17 × 64,154.25
4. Step 4: Simplify right side
   117,865.76x = 10,435,212,902.72
5. Step 5: Solve for x
   x = 10,435,212,902.72/117,865.76
6. Step 6: Final answer
   x = 88,534.73