Finding the Fourth Proportional to 64,422.52, 88,820.78 and 41,721.40

Step by Step Solution

1. Step 1: Write the proportion equation
   64,422.52 : 88,820.78 = 41,721.40 : x
2. Step 2: Convert to fraction form
   64,422.52/88,820.78 = 41,721.40/x
3. Step 3: Cross multiply
   64,422.52x = 88,820.78 × 41,721.40
4. Step 4: Simplify right side
   64,422.52x = 3,705,727,290.69
5. Step 5: Solve for x
   x = 3,705,727,290.69/64,422.52
6. Step 6: Final answer
   x = 57,522.23