Finding the Fourth Proportional to 7,002.47, 10,483.20 and 6,947.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.47 : 10,483.20 = 6,947.12 : x
2. Step 2: Convert to fraction form
   7,002.47/10,483.20 = 6,947.12/x
3. Step 3: Cross multiply
   7,002.47x = 10,483.20 × 6,947.12
4. Step 4: Simplify right side
   7,002.47x = 72,828,074.59
5. Step 5: Solve for x
   x = 72,828,074.59/7,002.47
6. Step 6: Final answer
   x = 10,400.34