Finding the Fourth Proportional to 215,008.16, 296,685.48 and 118,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   215,008.16 : 296,685.48 = 118,196.06 : x
2. Step 2: Convert to fraction form
   215,008.16/296,685.48 = 118,196.06/x
3. Step 3: Cross multiply
   215,008.16x = 296,685.48 × 118,196.06
4. Step 4: Simplify right side
   215,008.16x = 35,067,053,311.78
5. Step 5: Solve for x
   x = 35,067,053,311.78/215,008.16
6. Step 6: Final answer
   x = 163,096.38