Finding the Fourth Proportional to 102,490.41, 141,502.56 and 64,302.27

Step by Step Solution

1. Step 1: Write the proportion equation
   102,490.41 : 141,502.56 = 64,302.27 : x
2. Step 2: Convert to fraction form
   102,490.41/141,502.56 = 64,302.27/x
3. Step 3: Cross multiply
   102,490.41x = 141,502.56 × 64,302.27
4. Step 4: Simplify right side
   102,490.41x = 9,098,935,818.81
5. Step 5: Solve for x
   x = 9,098,935,818.81/102,490.41
6. Step 6: Final answer
   x = 88,778.41