Finding the Fourth Proportional to 117,613, 162,316.18 and 64,631.24

Step by Step Solution

1. Step 1: Write the proportion equation
   117,613 : 162,316.18 = 64,631.24 : x
2. Step 2: Convert to fraction form
   117,613/162,316.18 = 64,631.24/x
3. Step 3: Cross multiply
   117,613x = 162,316.18 × 64,631.24
4. Step 4: Simplify right side
   117,613x = 10,490,695,985.46
5. Step 5: Solve for x
   x = 10,490,695,985.46/117,613
6. Step 6: Final answer
   x = 89,196.74