Finding the Fourth Proportional to 123,594.86, 185,393.21 and 81,739.33

Step by Step Solution

1. Step 1: Write the proportion equation
   123,594.86 : 185,393.21 = 81,739.33 : x
2. Step 2: Convert to fraction form
   123,594.86/185,393.21 = 81,739.33/x
3. Step 3: Cross multiply
   123,594.86x = 185,393.21 × 81,739.33
4. Step 4: Simplify right side
   123,594.86x = 15,153,915,899.77
5. Step 5: Solve for x
   x = 15,153,915,899.77/123,594.86
6. Step 6: Final answer
   x = 122,609.59