Finding the Fourth Proportional to 13,775.88, 19,010.54 and 7,488.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,775.88 : 19,010.54 = 7,488.12 : x
2. Step 2: Convert to fraction form
   13,775.88/19,010.54 = 7,488.12/x
3. Step 3: Cross multiply
   13,775.88x = 19,010.54 × 7,488.12
4. Step 4: Simplify right side
   13,775.88x = 142,353,204.78
5. Step 5: Solve for x
   x = 142,353,204.78/13,775.88
6. Step 6: Final answer
   x = 10,333.51