Finding the Fourth Proportional to 13,842.78, 19,103.06 and 7,555.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,842.78 : 19,103.06 = 7,555.16 : x
2. Step 2: Convert to fraction form
   13,842.78/19,103.06 = 7,555.16/x
3. Step 3: Cross multiply
   13,842.78x = 19,103.06 × 7,555.16
4. Step 4: Simplify right side
   13,842.78x = 144,326,565.38
5. Step 5: Solve for x
   x = 144,326,565.38/13,842.78
6. Step 6: Final answer
   x = 10,426.12