Finding the Fourth Proportional to 9,100.08, 12,557.94 and 5,121.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,100.08 : 12,557.94 = 5,121.06 : x
2. Step 2: Convert to fraction form
   9,100.08/12,557.94 = 5,121.06/x
3. Step 3: Cross multiply
   9,100.08x = 12,557.94 × 5,121.06
4. Step 4: Simplify right side
   9,100.08x = 64,309,964.22
5. Step 5: Solve for x
   x = 64,309,964.22/9,100.08
6. Step 6: Final answer
   x = 7,066.97