Finding the Fourth Proportional to 9,030.24, 13,543.20 and 3,186.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,030.24 : 13,543.20 = 3,186.72 : x
2. Step 2: Convert to fraction form
   9,030.24/13,543.20 = 3,186.72/x
3. Step 3: Cross multiply
   9,030.24x = 13,543.20 × 3,186.72
4. Step 4: Simplify right side
   9,030.24x = 43,158,386.30
5. Step 5: Solve for x
   x = 43,158,386.30/9,030.24
6. Step 6: Final answer
   x = 4,779.32