Finding the Fourth Proportional to 42,828.80, 64,261.20 and 24,086.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,828.80 : 64,261.20 = 24,086.24 : x
2. Step 2: Convert to fraction form
   42,828.80/64,261.20 = 24,086.24/x
3. Step 3: Cross multiply
   42,828.80x = 64,261.20 × 24,086.24
4. Step 4: Simplify right side
   42,828.80x = 1,547,810,685.89
5. Step 5: Solve for x
   x = 1,547,810,685.89/42,828.80
6. Step 6: Final answer
   x = 36,139.48