Finding the Fourth Proportional to 9,100.94, 12,559.24 and 5,122.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,100.94 : 12,559.24 = 5,122.11 : x
2. Step 2: Convert to fraction form
   9,100.94/12,559.24 = 5,122.11/x
3. Step 3: Cross multiply
   9,100.94x = 12,559.24 × 5,122.11
4. Step 4: Simplify right side
   9,100.94x = 64,329,808.80
5. Step 5: Solve for x
   x = 64,329,808.80/9,100.94
6. Step 6: Final answer
   x = 7,068.48