Finding the Fourth Proportional to 12,853.47, 17,741.54 and 7,477.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,853.47 : 17,741.54 = 7,477.15 : x
2. Step 2: Convert to fraction form
   12,853.47/17,741.54 = 7,477.15/x
3. Step 3: Cross multiply
   12,853.47x = 17,741.54 × 7,477.15
4. Step 4: Simplify right side
   12,853.47x = 132,656,155.81
5. Step 5: Solve for x
   x = 132,656,155.81/12,853.47
6. Step 6: Final answer
   x = 10,320.65