Finding the Fourth Proportional to 13,842.34, 19,102.89 and 7,555.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,842.34 : 19,102.89 = 7,555.30 : x
2. Step 2: Convert to fraction form
   13,842.34/19,102.89 = 7,555.30/x
3. Step 3: Cross multiply
   13,842.34x = 19,102.89 × 7,555.30
4. Step 4: Simplify right side
   13,842.34x = 144,328,064.82
5. Step 5: Solve for x
   x = 144,328,064.82/13,842.34
6. Step 6: Final answer
   x = 10,426.57