Finding the Fourth Proportional to 123,059.32, 169,821.86 and 66,470.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,059.32 : 169,821.86 = 66,470.69 : x
2. Step 2: Convert to fraction form
   123,059.32/169,821.86 = 66,470.69/x
3. Step 3: Cross multiply
   123,059.32x = 169,821.86 × 66,470.69
4. Step 4: Simplify right side
   123,059.32x = 11,288,176,802.01
5. Step 5: Solve for x
   x = 11,288,176,802.01/123,059.32
6. Step 6: Final answer
   x = 91,729.56