Finding the Fourth Proportional to 14,066.50, 19,412 and 7,778.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,066.50 : 19,412 = 7,778.88 : x
2. Step 2: Convert to fraction form
   14,066.50/19,412 = 7,778.88/x
3. Step 3: Cross multiply
   14,066.50x = 19,412 × 7,778.88
4. Step 4: Simplify right side
   14,066.50x = 151,003,618.56
5. Step 5: Solve for x
   x = 151,003,618.56/14,066.50
6. Step 6: Final answer
   x = 10,734.98