Finding the Fourth Proportional to 102,773.48, 141,828.18 and 57,453.30

Step by Step Solution

1. Step 1: Write the proportion equation
   102,773.48 : 141,828.18 = 57,453.30 : x
2. Step 2: Convert to fraction form
   102,773.48/141,828.18 = 57,453.30/x
3. Step 3: Cross multiply
   102,773.48x = 141,828.18 × 57,453.30
4. Step 4: Simplify right side
   102,773.48x = 8,148,496,758.54
5. Step 5: Solve for x
   x = 8,148,496,758.54/102,773.48
6. Step 6: Final answer
   x = 79,285.99