Finding the Fourth Proportional to 81,300.96, 121,955.52 and 25,901.28

Step by Step Solution

1. Step 1: Write the proportion equation
   81,300.96 : 121,955.52 = 25,901.28 : x
2. Step 2: Convert to fraction form
   81,300.96/121,955.52 = 25,901.28/x
3. Step 3: Cross multiply
   81,300.96x = 121,955.52 × 25,901.28
4. Step 4: Simplify right side
   81,300.96x = 3,158,804,071.07
5. Step 5: Solve for x
   x = 3,158,804,071.07/81,300.96
6. Step 6: Final answer
   x = 38,853.22