Finding the Fourth Proportional to 9,048.39, 12,483.56 and 7,160.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.39 : 12,483.56 = 7,160.28 : x
2. Step 2: Convert to fraction form
   9,048.39/12,483.56 = 7,160.28/x
3. Step 3: Cross multiply
   9,048.39x = 12,483.56 × 7,160.28
4. Step 4: Simplify right side
   9,048.39x = 89,385,749.20
5. Step 5: Solve for x
   x = 89,385,749.20/9,048.39
6. Step 6: Final answer
   x = 9,878.64