Finding the Fourth Proportional to 13,046.10, 17,990.00 and 7,739.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.10 : 17,990.00 = 7,739.89 : x
2. Step 2: Convert to fraction form
   13,046.10/17,990.00 = 7,739.89/x
3. Step 3: Cross multiply
   13,046.10x = 17,990.00 × 7,739.89
4. Step 4: Simplify right side
   13,046.10x = 139,240,566.45
5. Step 5: Solve for x
   x = 139,240,566.45/13,046.10
6. Step 6: Final answer
   x = 10,672.97