Finding the Fourth Proportional to 64,384.72, 88,851.72 and 39,236.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,384.72 : 88,851.72 = 39,236.56 : x
2. Step 2: Convert to fraction form
   64,384.72/88,851.72 = 39,236.56/x
3. Step 3: Cross multiply
   64,384.72x = 88,851.72 × 39,236.56
4. Step 4: Simplify right side
   64,384.72x = 3,486,235,842.88
5. Step 5: Solve for x
   x = 3,486,235,842.88/64,384.72
6. Step 6: Final answer
   x = 54,146.94