Finding the Fourth Proportional to 117,290.02, 161,606.72 and 79,498.66

Step by Step Solution

1. Step 1: Write the proportion equation
   117,290.02 : 161,606.72 = 79,498.66 : x
2. Step 2: Convert to fraction form
   117,290.02/161,606.72 = 79,498.66/x
3. Step 3: Cross multiply
   117,290.02x = 161,606.72 × 79,498.66
4. Step 4: Simplify right side
   117,290.02x = 12,847,517,687.00
5. Step 5: Solve for x
   x = 12,847,517,687.00/117,290.02
6. Step 6: Final answer
   x = 109,536.32