Finding the Fourth Proportional to 14,105.60, 19,466.88 and 7,820

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.60 : 19,466.88 = 7,820 : x
2. Step 2: Convert to fraction form
   14,105.60/19,466.88 = 7,820/x
3. Step 3: Cross multiply
   14,105.60x = 19,466.88 × 7,820
4. Step 4: Simplify right side
   14,105.60x = 152,231,001.60
5. Step 5: Solve for x
   x = 152,231,001.60/14,105.60
6. Step 6: Final answer
   x = 10,792.24