Finding the Fourth Proportional to 64,894.08, 89,544.96 and 39,738.24

Step by Step Solution

1. Step 1: Write the proportion equation
   64,894.08 : 89,544.96 = 39,738.24 : x
2. Step 2: Convert to fraction form
   64,894.08/89,544.96 = 39,738.24/x
3. Step 3: Cross multiply
   64,894.08x = 89,544.96 × 39,738.24
4. Step 4: Simplify right side
   64,894.08x = 3,558,359,111.27
5. Step 5: Solve for x
   x = 3,558,359,111.27/64,894.08
6. Step 6: Final answer
   x = 54,833.34