Finding the Fourth Proportional to 117,830.96, 162,605.96 and 64,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   117,830.96 : 162,605.96 = 64,116.18 : x
2. Step 2: Convert to fraction form
   117,830.96/162,605.96 = 64,116.18/x
3. Step 3: Cross multiply
   117,830.96x = 162,605.96 × 64,116.18
4. Step 4: Simplify right side
   117,830.96x = 10,425,672,679.85
5. Step 5: Solve for x
   x = 10,425,672,679.85/117,830.96
6. Step 6: Final answer
   x = 88,479.91