Finding the Fourth Proportional to 215,029.50, 296,748.32 and 118,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,029.50 : 296,748.32 = 118,240.72 : x
2. Step 2: Convert to fraction form
   215,029.50/296,748.32 = 118,240.72/x
3. Step 3: Cross multiply
   215,029.50x = 296,748.32 × 118,240.72
4. Step 4: Simplify right side
   215,029.50x = 35,087,735,015.59
5. Step 5: Solve for x
   x = 35,087,735,015.59/215,029.50
6. Step 6: Final answer
   x = 163,176.38