Finding the Fourth Proportional to 14,355.09, 19,810.06 and 7,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,355.09 : 19,810.06 = 7,981.50 : x
2. Step 2: Convert to fraction form
   14,355.09/19,810.06 = 7,981.50/x
3. Step 3: Cross multiply
   14,355.09x = 19,810.06 × 7,981.50
4. Step 4: Simplify right side
   14,355.09x = 158,113,993.89
5. Step 5: Solve for x
   x = 158,113,993.89/14,355.09
6. Step 6: Final answer
   x = 11,014.49