Finding the Fourth Proportional to 9,100.86, 12,559.64 and 5,122.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,100.86 : 12,559.64 = 5,122.41 : x
2. Step 2: Convert to fraction form
   9,100.86/12,559.64 = 5,122.41/x
3. Step 3: Cross multiply
   9,100.86x = 12,559.64 × 5,122.41
4. Step 4: Simplify right side
   9,100.86x = 64,335,599.92
5. Step 5: Solve for x
   x = 64,335,599.92/9,100.86
6. Step 6: Final answer
   x = 7,069.18