Finding the Fourth Proportional to 10,003.72, 14,993.60 and 4,659.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.72 : 14,993.60 = 4,659.70 : x
2. Step 2: Convert to fraction form
   10,003.72/14,993.60 = 4,659.70/x
3. Step 3: Cross multiply
   10,003.72x = 14,993.60 × 4,659.70
4. Step 4: Simplify right side
   10,003.72x = 69,865,616.19
5. Step 5: Solve for x
   x = 69,865,616.19/10,003.72
6. Step 6: Final answer
   x = 6,983.96