Finding the Fourth Proportional to 64,391.72, 88,865.69 and 35,714.21

Step by Step Solution

1. Step 1: Write the proportion equation
   64,391.72 : 88,865.69 = 35,714.21 : x
2. Step 2: Convert to fraction form
   64,391.72/88,865.69 = 35,714.21/x
3. Step 3: Cross multiply
   64,391.72x = 88,865.69 × 35,714.21
4. Step 4: Simplify right side
   64,391.72x = 3,173,767,291.56
5. Step 5: Solve for x
   x = 3,173,767,291.56/64,391.72
6. Step 6: Final answer
   x = 49,288.44