Finding the Fourth Proportional to 9,112.25, 12,574.76 and 5,134.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.25 : 12,574.76 = 5,134.07 : x
2. Step 2: Convert to fraction form
   9,112.25/12,574.76 = 5,134.07/x
3. Step 3: Cross multiply
   9,112.25x = 12,574.76 × 5,134.07
4. Step 4: Simplify right side
   9,112.25x = 64,559,609.53
5. Step 5: Solve for x
   x = 64,559,609.53/9,112.25
6. Step 6: Final answer
   x = 7,084.93