Finding the Fourth Proportional to 10,339.47, 15,503.04 and 7,011.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,339.47 : 15,503.04 = 7,011.81 : x
2. Step 2: Convert to fraction form
   10,339.47/15,503.04 = 7,011.81/x
3. Step 3: Cross multiply
   10,339.47x = 15,503.04 × 7,011.81
4. Step 4: Simplify right side
   10,339.47x = 108,704,370.90
5. Step 5: Solve for x
   x = 108,704,370.90/10,339.47
6. Step 6: Final answer
   x = 10,513.53