Finding the Fourth Proportional to 64,865.47, 88,744.54 and 64,585.41

Step by Step Solution

1. Step 1: Write the proportion equation
   64,865.47 : 88,744.54 = 64,585.41 : x
2. Step 2: Convert to fraction form
   64,865.47/88,744.54 = 64,585.41/x
3. Step 3: Cross multiply
   64,865.47x = 88,744.54 × 64,585.41
4. Step 4: Simplify right side
   64,865.47x = 5,731,602,501.16
5. Step 5: Solve for x
   x = 5,731,602,501.16/64,865.47
6. Step 6: Final answer
   x = 88,361.38