Finding the Fourth Proportional to 9,101.31, 12,559.83 and 5,122.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,101.31 : 12,559.83 = 5,122.48 : x
2. Step 2: Convert to fraction form
   9,101.31/12,559.83 = 5,122.48/x
3. Step 3: Cross multiply
   9,101.31x = 12,559.83 × 5,122.48
4. Step 4: Simplify right side
   9,101.31x = 64,337,477.98
5. Step 5: Solve for x
   x = 64,337,477.98/9,101.31
6. Step 6: Final answer
   x = 7,069.03