Finding the Fourth Proportional to 64,864.47, 88,743.17 and 64,584.41

Step by Step Solution

1. Step 1: Write the proportion equation
   64,864.47 : 88,743.17 = 64,584.41 : x
2. Step 2: Convert to fraction form
   64,864.47/88,743.17 = 64,584.41/x
3. Step 3: Cross multiply
   64,864.47x = 88,743.17 × 64,584.41
4. Step 4: Simplify right side
   64,864.47x = 5,731,425,659.30
5. Step 5: Solve for x
   x = 5,731,425,659.30/64,864.47
6. Step 6: Final answer
   x = 88,360.02