Finding the Fourth Proportional to 13,787, 19,026.15 and 7,499.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,787 : 19,026.15 = 7,499.42 : x
2. Step 2: Convert to fraction form
   13,787/19,026.15 = 7,499.42/x
3. Step 3: Cross multiply
   13,787x = 19,026.15 × 7,499.42
4. Step 4: Simplify right side
   13,787x = 142,685,089.83
5. Step 5: Solve for x
   x = 142,685,089.83/13,787
6. Step 6: Final answer
   x = 10,349.25