Finding the Fourth Proportional to 215,152.33, 296,908.57 and 118,354.10

Step by Step Solution

1. Step 1: Write the proportion equation
   215,152.33 : 296,908.57 = 118,354.10 : x
2. Step 2: Convert to fraction form
   215,152.33/296,908.57 = 118,354.10/x
3. Step 3: Cross multiply
   215,152.33x = 296,908.57 × 118,354.10
4. Step 4: Simplify right side
   215,152.33x = 35,140,347,474.85
5. Step 5: Solve for x
   x = 35,140,347,474.85/215,152.33
6. Step 6: Final answer
   x = 163,327.76