Finding the Fourth Proportional to 13,785.72, 19,024.80 and 7,498.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,785.72 : 19,024.80 = 7,498.56 : x
2. Step 2: Convert to fraction form
   13,785.72/19,024.80 = 7,498.56/x
3. Step 3: Cross multiply
   13,785.72x = 19,024.80 × 7,498.56
4. Step 4: Simplify right side
   13,785.72x = 142,658,604.29
5. Step 5: Solve for x
   x = 142,658,604.29/13,785.72
6. Step 6: Final answer
   x = 10,348.29