Finding the Fourth Proportional to 215,505.72, 323,427.06 and 149,411.34

Step by Step Solution

1. Step 1: Write the proportion equation
   215,505.72 : 323,427.06 = 149,411.34 : x
2. Step 2: Convert to fraction form
   215,505.72/323,427.06 = 149,411.34/x
3. Step 3: Cross multiply
   215,505.72x = 323,427.06 × 149,411.34
4. Step 4: Simplify right side
   215,505.72x = 48,323,670,426.86
5. Step 5: Solve for x
   x = 48,323,670,426.86/215,505.72
6. Step 6: Final answer
   x = 224,233.82