Finding the Fourth Proportional to 13,776.13, 19,010.96 and 7,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,776.13 : 19,010.96 = 7,488.50 : x
2. Step 2: Convert to fraction form
   13,776.13/19,010.96 = 7,488.50/x
3. Step 3: Cross multiply
   13,776.13x = 19,010.96 × 7,488.50
4. Step 4: Simplify right side
   13,776.13x = 142,363,573.96
5. Step 5: Solve for x
   x = 142,363,573.96/13,776.13
6. Step 6: Final answer
   x = 10,334.08