Finding the Fourth Proportional to 14,427.75, 19,910.61 and 8,140.14

Step by Step Solution

1. Step 1: Write the proportion equation
   14,427.75 : 19,910.61 = 8,140.14 : x
2. Step 2: Convert to fraction form
   14,427.75/19,910.61 = 8,140.14/x
3. Step 3: Cross multiply
   14,427.75x = 19,910.61 × 8,140.14
4. Step 4: Simplify right side
   14,427.75x = 162,075,152.89
5. Step 5: Solve for x
   x = 162,075,152.89/14,427.75
6. Step 6: Final answer
   x = 11,233.57