Finding the Fourth Proportional to 102,323.86, 141,205 and 57,005.58

Step by Step Solution

1. Step 1: Write the proportion equation
   102,323.86 : 141,205 = 57,005.58 : x
2. Step 2: Convert to fraction form
   102,323.86/141,205 = 57,005.58/x
3. Step 3: Cross multiply
   102,323.86x = 141,205 × 57,005.58
4. Step 4: Simplify right side
   102,323.86x = 8,049,472,923.90
5. Step 5: Solve for x
   x = 8,049,472,923.90/102,323.86
6. Step 6: Final answer
   x = 78,666.63