Finding the Fourth Proportional to 215,156.48, 296,910.72 and 119,662.88

Step by Step Solution

1. Step 1: Write the proportion equation
   215,156.48 : 296,910.72 = 119,662.88 : x
2. Step 2: Convert to fraction form
   215,156.48/296,910.72 = 119,662.88/x
3. Step 3: Cross multiply
   215,156.48x = 296,910.72 × 119,662.88
4. Step 4: Simplify right side
   215,156.48x = 35,529,191,858.07
5. Step 5: Solve for x
   x = 35,529,191,858.07/215,156.48
6. Step 6: Final answer
   x = 165,131.87