Finding the Fourth Proportional to 9,101.05, 12,558.91 and 5,121.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,101.05 : 12,558.91 = 5,121.93 : x
2. Step 2: Convert to fraction form
   9,101.05/12,558.91 = 5,121.93/x
3. Step 3: Cross multiply
   9,101.05x = 12,558.91 × 5,121.93
4. Step 4: Simplify right side
   9,101.05x = 64,325,857.90
5. Step 5: Solve for x
   x = 64,325,857.90/9,101.05
6. Step 6: Final answer
   x = 7,067.96