Finding the Fourth Proportional to 64,662.59, 89,275.39 and 44,278.79

Step by Step Solution

1. Step 1: Write the proportion equation
   64,662.59 : 89,275.39 = 44,278.79 : x
2. Step 2: Convert to fraction form
   64,662.59/89,275.39 = 44,278.79/x
3. Step 3: Cross multiply
   64,662.59x = 89,275.39 × 44,278.79
4. Step 4: Simplify right side
   64,662.59x = 3,953,005,688.90
5. Step 5: Solve for x
   x = 3,953,005,688.90/64,662.59
6. Step 6: Final answer
   x = 61,132.81