Finding the Fourth Proportional to 10,748.38, 14,839.68 and 7,390.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,748.38 : 14,839.68 = 7,390.12 : x
2. Step 2: Convert to fraction form
   10,748.38/14,839.68 = 7,390.12/x
3. Step 3: Cross multiply
   10,748.38x = 14,839.68 × 7,390.12
4. Step 4: Simplify right side
   10,748.38x = 109,667,015.96
5. Step 5: Solve for x
   x = 109,667,015.96/10,748.38
6. Step 6: Final answer
   x = 10,203.12