Finding the Fourth Proportional to 14,061.09, 19,430.01 and 13,377.90

Step by Step Solution

1. Step 1: Write the proportion equation
   14,061.09 : 19,430.01 = 13,377.90 : x
2. Step 2: Convert to fraction form
   14,061.09/19,430.01 = 13,377.90/x
3. Step 3: Cross multiply
   14,061.09x = 19,430.01 × 13,377.90
4. Step 4: Simplify right side
   14,061.09x = 259,932,730.78
5. Step 5: Solve for x
   x = 259,932,730.78/14,061.09
6. Step 6: Final answer
   x = 18,485.96