Finding the Fourth Proportional to 9,919.72, 14,881.92 and 7,003.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,919.72 : 14,881.92 = 7,003.72 : x
2. Step 2: Convert to fraction form
   9,919.72/14,881.92 = 7,003.72/x
3. Step 3: Cross multiply
   9,919.72x = 14,881.92 × 7,003.72
4. Step 4: Simplify right side
   9,919.72x = 104,228,800.74
5. Step 5: Solve for x
   x = 104,228,800.74/9,919.72
6. Step 6: Final answer
   x = 10,507.23