Finding the Fourth Proportional to 13,849.56, 19,112.10 and 7,561.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,849.56 : 19,112.10 = 7,561.80 : x
2. Step 2: Convert to fraction form
   13,849.56/19,112.10 = 7,561.80/x
3. Step 3: Cross multiply
   13,849.56x = 19,112.10 × 7,561.80
4. Step 4: Simplify right side
   13,849.56x = 144,521,877.78
5. Step 5: Solve for x
   x = 144,521,877.78/13,849.56
6. Step 6: Final answer
   x = 10,435.12