Finding the Fourth Proportional to 64,089.32, 88,436.31 and 38,243.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,089.32 : 88,436.31 = 38,243.09 : x
2. Step 2: Convert to fraction form
   64,089.32/88,436.31 = 38,243.09/x
3. Step 3: Cross multiply
   64,089.32x = 88,436.31 × 38,243.09
4. Step 4: Simplify right side
   64,089.32x = 3,382,077,320.42
5. Step 5: Solve for x
   x = 3,382,077,320.42/64,089.32
6. Step 6: Final answer
   x = 52,771.31