Finding the Fourth Proportional to 10,003.32, 13,781.16 and 7,013.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.32 : 13,781.16 = 7,013.88 : x
2. Step 2: Convert to fraction form
   10,003.32/13,781.16 = 7,013.88/x
3. Step 3: Cross multiply
   10,003.32x = 13,781.16 × 7,013.88
4. Step 4: Simplify right side
   10,003.32x = 96,659,402.50
5. Step 5: Solve for x
   x = 96,659,402.50/10,003.32
6. Step 6: Final answer
   x = 9,662.73