Finding the Fourth Proportional to 117,116.09, 161,620.72 and 63,401.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,116.09 : 161,620.72 = 63,401.10 : x
2. Step 2: Convert to fraction form
   117,116.09/161,620.72 = 63,401.10/x
3. Step 3: Cross multiply
   117,116.09x = 161,620.72 × 63,401.10
4. Step 4: Simplify right side
   117,116.09x = 10,246,931,272.29
5. Step 5: Solve for x
   x = 10,246,931,272.29/117,116.09
6. Step 6: Final answer
   x = 87,493.80