Finding the Fourth Proportional to 9,043.79, 12,480.28 and 5,064.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.79 : 12,480.28 = 5,064.86 : x
2. Step 2: Convert to fraction form
   9,043.79/12,480.28 = 5,064.86/x
3. Step 3: Cross multiply
   9,043.79x = 12,480.28 × 5,064.86
4. Step 4: Simplify right side
   9,043.79x = 63,210,889.50
5. Step 5: Solve for x
   x = 63,210,889.50/9,043.79
6. Step 6: Final answer
   x = 6,989.43