Finding the Fourth Proportional to 13,848.64, 19,111.49 and 7,561.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,848.64 : 19,111.49 = 7,561.15 : x
2. Step 2: Convert to fraction form
   13,848.64/19,111.49 = 7,561.15/x
3. Step 3: Cross multiply
   13,848.64x = 19,111.49 × 7,561.15
4. Step 4: Simplify right side
   13,848.64x = 144,504,842.61
5. Step 5: Solve for x
   x = 144,504,842.61/13,848.64
6. Step 6: Final answer
   x = 10,434.59