Finding the Fourth Proportional to 64,972.32, 89,661.76 and 35,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   64,972.32 : 89,661.76 = 35,164.32 : x
2. Step 2: Convert to fraction form
   64,972.32/89,661.76 = 35,164.32/x
3. Step 3: Cross multiply
   64,972.32x = 89,661.76 × 35,164.32
4. Step 4: Simplify right side
   64,972.32x = 3,152,894,820.40
5. Step 5: Solve for x
   x = 3,152,894,820.40/64,972.32
6. Step 6: Final answer
   x = 48,526.74