Finding the Fourth Proportional to 123,059.82, 169,822.55 and 66,471.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,059.82 : 169,822.55 = 66,471.20 : x
2. Step 2: Convert to fraction form
   123,059.82/169,822.55 = 66,471.20/x
3. Step 3: Cross multiply
   123,059.82x = 169,822.55 × 66,471.20
4. Step 4: Simplify right side
   123,059.82x = 11,288,308,002.63
5. Step 5: Solve for x
   x = 11,288,308,002.63/123,059.82
6. Step 6: Final answer
   x = 91,730.25