Finding the Fourth Proportional to 10,543.47, 14,538.12 and 7,188.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,543.47 : 14,538.12 = 7,188.24 : x
2. Step 2: Convert to fraction form
   10,543.47/14,538.12 = 7,188.24/x
3. Step 3: Cross multiply
   10,543.47x = 14,538.12 × 7,188.24
4. Step 4: Simplify right side
   10,543.47x = 104,503,495.71
5. Step 5: Solve for x
   x = 104,503,495.71/10,543.47
6. Step 6: Final answer
   x = 9,911.68