Finding the Fourth Proportional to 215,039.67, 296,761.20 and 118,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   215,039.67 : 296,761.20 = 118,238.52 : x
2. Step 2: Convert to fraction form
   215,039.67/296,761.20 = 118,238.52/x
3. Step 3: Cross multiply
   215,039.67x = 296,761.20 × 118,238.52
4. Step 4: Simplify right side
   215,039.67x = 35,088,605,081.42
5. Step 5: Solve for x
   x = 35,088,605,081.42/215,039.67
6. Step 6: Final answer
   x = 163,172.71