Finding the Fourth Proportional to 64,019.49, 88,349.30 and 35,730.64

Step by Step Solution

1. Step 1: Write the proportion equation
   64,019.49 : 88,349.30 = 35,730.64 : x
2. Step 2: Convert to fraction form
   64,019.49/88,349.30 = 35,730.64/x
3. Step 3: Cross multiply
   64,019.49x = 88,349.30 × 35,730.64
4. Step 4: Simplify right side
   64,019.49x = 3,156,777,032.55
5. Step 5: Solve for x
   x = 3,156,777,032.55/64,019.49
6. Step 6: Final answer
   x = 49,309.62