Finding the Fourth Proportional to 10,909.98, 15,063.03 and 7,371.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,909.98 : 15,063.03 = 7,371.90 : x
2. Step 2: Convert to fraction form
   10,909.98/15,063.03 = 7,371.90/x
3. Step 3: Cross multiply
   10,909.98x = 15,063.03 × 7,371.90
4. Step 4: Simplify right side
   10,909.98x = 111,043,150.86
5. Step 5: Solve for x
   x = 111,043,150.86/10,909.98
6. Step 6: Final answer
   x = 10,178.13