Finding the Fourth Proportional to 49,128.80, 73,693.52 and 17,951.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,128.80 : 73,693.52 = 17,951.20 : x
2. Step 2: Convert to fraction form
   49,128.80/73,693.52 = 17,951.20/x
3. Step 3: Cross multiply
   49,128.80x = 73,693.52 × 17,951.20
4. Step 4: Simplify right side
   49,128.80x = 1,322,887,116.22
5. Step 5: Solve for x
   x = 1,322,887,116.22/49,128.80
6. Step 6: Final answer
   x = 26,926.92