Finding the Fourth Proportional to 9,048.28, 12,486.24 and 5,068.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.28 : 12,486.24 = 5,068.72 : x
2. Step 2: Convert to fraction form
   9,048.28/12,486.24 = 5,068.72/x
3. Step 3: Cross multiply
   9,048.28x = 12,486.24 × 5,068.72
4. Step 4: Simplify right side
   9,048.28x = 63,289,254.41
5. Step 5: Solve for x
   x = 63,289,254.41/9,048.28
6. Step 6: Final answer
   x = 6,994.62