Finding the Fourth Proportional to 106,940.32, 160,548.72 and 57,726.88

Step by Step Solution

1. Step 1: Write the proportion equation
   106,940.32 : 160,548.72 = 57,726.88 : x
2. Step 2: Convert to fraction form
   106,940.32/160,548.72 = 57,726.88/x
3. Step 3: Cross multiply
   106,940.32x = 160,548.72 × 57,726.88
4. Step 4: Simplify right side
   106,940.32x = 9,267,976,693.59
5. Step 5: Solve for x
   x = 9,267,976,693.59/106,940.32
6. Step 6: Final answer
   x = 86,664.94