Finding the Fourth Proportional to 123,363.30, 185,051.56 and 39,129.86

Step by Step Solution

1. Step 1: Write the proportion equation
   123,363.30 : 185,051.56 = 39,129.86 : x
2. Step 2: Convert to fraction form
   123,363.30/185,051.56 = 39,129.86/x
3. Step 3: Cross multiply
   123,363.30x = 185,051.56 × 39,129.86
4. Step 4: Simplify right side
   123,363.30x = 7,241,041,635.58
5. Step 5: Solve for x
   x = 7,241,041,635.58/123,363.30
6. Step 6: Final answer
   x = 58,696.89