Finding the Fourth Proportional to 19,849.00, 29,782.59 and 8,607.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,849.00 : 29,782.59 = 8,607.78 : x
2. Step 2: Convert to fraction form
   19,849.00/29,782.59 = 8,607.78/x
3. Step 3: Cross multiply
   19,849.00x = 29,782.59 × 8,607.78
4. Step 4: Simplify right side
   19,849.00x = 256,361,939.51
5. Step 5: Solve for x
   x = 256,361,939.51/19,849.00
6. Step 6: Final answer
   x = 12,915.61