Finding the Fourth Proportional to 14,088.78, 19,443.06 and 7,801.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,088.78 : 19,443.06 = 7,801.20 : x
2. Step 2: Convert to fraction form
   14,088.78/19,443.06 = 7,801.20/x
3. Step 3: Cross multiply
   14,088.78x = 19,443.06 × 7,801.20
4. Step 4: Simplify right side
   14,088.78x = 151,679,199.67
5. Step 5: Solve for x
   x = 151,679,199.67/14,088.78
6. Step 6: Final answer
   x = 10,765.96