Finding the Fourth Proportional to 102,664.77, 141,675.89 and 57,343.39

Step by Step Solution

1. Step 1: Write the proportion equation
   102,664.77 : 141,675.89 = 57,343.39 : x
2. Step 2: Convert to fraction form
   102,664.77/141,675.89 = 57,343.39/x
3. Step 3: Cross multiply
   102,664.77x = 141,675.89 × 57,343.39
4. Step 4: Simplify right side
   102,664.77x = 8,124,175,969.89
5. Step 5: Solve for x
   x = 8,124,175,969.89/102,664.77
6. Step 6: Final answer
   x = 79,133.05