Finding the Fourth Proportional to 13,003.47, 19,499.67 and 5,604.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.47 : 19,499.67 = 5,604.12 : x
2. Step 2: Convert to fraction form
   13,003.47/19,499.67 = 5,604.12/x
3. Step 3: Cross multiply
   13,003.47x = 19,499.67 × 5,604.12
4. Step 4: Simplify right side
   13,003.47x = 109,278,490.64
5. Step 5: Solve for x
   x = 109,278,490.64/13,003.47
6. Step 6: Final answer
   x = 8,403.79