Finding the Fourth Proportional to 13,776.30, 19,010.77 and 7,488.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,776.30 : 19,010.77 = 7,488.68 : x
2. Step 2: Convert to fraction form
   13,776.30/19,010.77 = 7,488.68/x
3. Step 3: Cross multiply
   13,776.30x = 19,010.77 × 7,488.68
4. Step 4: Simplify right side
   13,776.30x = 142,365,459.31
5. Step 5: Solve for x
   x = 142,365,459.31/13,776.30
6. Step 6: Final answer
   x = 10,334.09