Finding the Fourth Proportional to 102,665.24, 141,676.52 and 57,343.88

Step by Step Solution

1. Step 1: Write the proportion equation
   102,665.24 : 141,676.52 = 57,343.88 : x
2. Step 2: Convert to fraction form
   102,665.24/141,676.52 = 57,343.88/x
3. Step 3: Cross multiply
   102,665.24x = 141,676.52 × 57,343.88
4. Step 4: Simplify right side
   102,665.24x = 8,124,281,429.17
5. Step 5: Solve for x
   x = 8,124,281,429.17/102,665.24
6. Step 6: Final answer
   x = 79,133.71