Finding the Fourth Proportional to 9,347.98, 12,900.22 and 5,099.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,347.98 : 12,900.22 = 5,099.05 : x
2. Step 2: Convert to fraction form
   9,347.98/12,900.22 = 5,099.05/x
3. Step 3: Cross multiply
   9,347.98x = 12,900.22 × 5,099.05
4. Step 4: Simplify right side
   9,347.98x = 65,778,866.79
5. Step 5: Solve for x
   x = 65,778,866.79/9,347.98
6. Step 6: Final answer
   x = 7,036.69