Finding the Fourth Proportional to 9,101.98, 12,559.85 and 5,123.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,101.98 : 12,559.85 = 5,123.01 : x
2. Step 2: Convert to fraction form
   9,101.98/12,559.85 = 5,123.01/x
3. Step 3: Cross multiply
   9,101.98x = 12,559.85 × 5,123.01
4. Step 4: Simplify right side
   9,101.98x = 64,344,237.15
5. Step 5: Solve for x
   x = 64,344,237.15/9,101.98
6. Step 6: Final answer
   x = 7,069.26