Finding the Fourth Proportional to 64,405.94, 88,885.35 and 35,728.43

Step by Step Solution

1. Step 1: Write the proportion equation
   64,405.94 : 88,885.35 = 35,728.43 : x
2. Step 2: Convert to fraction form
   64,405.94/88,885.35 = 35,728.43/x
3. Step 3: Cross multiply
   64,405.94x = 88,885.35 × 35,728.43
4. Step 4: Simplify right side
   64,405.94x = 3,175,733,561.07
5. Step 5: Solve for x
   x = 3,175,733,561.07/64,405.94
6. Step 6: Final answer
   x = 49,308.09