Finding the Fourth Proportional to 9,099.83, 12,557.63 and 5,120.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,099.83 : 12,557.63 = 5,120.93 : x
2. Step 2: Convert to fraction form
   9,099.83/12,557.63 = 5,120.93/x
3. Step 3: Cross multiply
   9,099.83x = 12,557.63 × 5,120.93
4. Step 4: Simplify right side
   9,099.83x = 64,306,788.39
5. Step 5: Solve for x
   x = 64,306,788.39/9,099.83
6. Step 6: Final answer
   x = 7,066.81