Finding the Fourth Proportional to 123,080.80, 184,567.20 and 56,498.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,080.80 : 184,567.20 = 56,498.80 : x
2. Step 2: Convert to fraction form
   123,080.80/184,567.20 = 56,498.80/x
3. Step 3: Cross multiply
   123,080.80x = 184,567.20 × 56,498.80
4. Step 4: Simplify right side
   123,080.80x = 10,427,825,319.36
5. Step 5: Solve for x
   x = 10,427,825,319.36/123,080.80
6. Step 6: Final answer
   x = 84,723.41