Finding the Fourth Proportional to 13,822.20, 19,074.61 and 7,534.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,822.20 : 19,074.61 = 7,534.59 : x
2. Step 2: Convert to fraction form
   13,822.20/19,074.61 = 7,534.59/x
3. Step 3: Cross multiply
   13,822.20x = 19,074.61 × 7,534.59
4. Step 4: Simplify right side
   13,822.20x = 143,719,365.76
5. Step 5: Solve for x
   x = 143,719,365.76/13,822.20
6. Step 6: Final answer
   x = 10,397.72