Finding the Fourth Proportional to 43,017.92, 64,846.06 and 39,280.89

Step by Step Solution

1. Step 1: Write the proportion equation
   43,017.92 : 64,846.06 = 39,280.89 : x
2. Step 2: Convert to fraction form
   43,017.92/64,846.06 = 39,280.89/x
3. Step 3: Cross multiply
   43,017.92x = 64,846.06 × 39,280.89
4. Step 4: Simplify right side
   43,017.92x = 2,547,210,949.79
5. Step 5: Solve for x
   x = 2,547,210,949.79/43,017.92
6. Step 6: Final answer
   x = 59,212.79