Finding the Fourth Proportional to 12,726.60, 19,100.10 and 7,185.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,726.60 : 19,100.10 = 7,185.24 : x
2. Step 2: Convert to fraction form
   12,726.60/19,100.10 = 7,185.24/x
3. Step 3: Cross multiply
   12,726.60x = 19,100.10 × 7,185.24
4. Step 4: Simplify right side
   12,726.60x = 137,238,802.52
5. Step 5: Solve for x
   x = 137,238,802.52/12,726.60
6. Step 6: Final answer
   x = 10,783.62