Finding the Fourth Proportional to 89,502.32, 123,513 and 49,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,502.32 : 123,513 = 49,218.56 : x
2. Step 2: Convert to fraction form
   89,502.32/123,513 = 49,218.56/x
3. Step 3: Cross multiply
   89,502.32x = 123,513 × 49,218.56
4. Step 4: Simplify right side
   89,502.32x = 6,079,132,001.28
5. Step 5: Solve for x
   x = 6,079,132,001.28/89,502.32
6. Step 6: Final answer
   x = 67,921.50