Finding the Fourth Proportional to 8,739.93, 12,055.59 and 5,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,739.93 : 12,055.59 = 5,200.50 : x
2. Step 2: Convert to fraction form
   8,739.93/12,055.59 = 5,200.50/x
3. Step 3: Cross multiply
   8,739.93x = 12,055.59 × 5,200.50
4. Step 4: Simplify right side
   8,739.93x = 62,695,095.80
5. Step 5: Solve for x
   x = 62,695,095.80/8,739.93
6. Step 6: Final answer
   x = 7,173.41