Finding the Fourth Proportional to 215,008.67, 296,686.17 and 118,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   215,008.67 : 296,686.17 = 118,196.56 : x
2. Step 2: Convert to fraction form
   215,008.67/296,686.17 = 118,196.56/x
3. Step 3: Cross multiply
   215,008.67x = 296,686.17 × 118,196.56
4. Step 4: Simplify right side
   215,008.67x = 35,067,283,210.14
5. Step 5: Solve for x
   x = 35,067,283,210.14/215,008.67
6. Step 6: Final answer
   x = 163,097.07