Finding the Fourth Proportional to 9,112.50, 12,574.95 and 5,133.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.50 : 12,574.95 = 5,133.38 : x
2. Step 2: Convert to fraction form
   9,112.50/12,574.95 = 5,133.38/x
3. Step 3: Cross multiply
   9,112.50x = 12,574.95 × 5,133.38
4. Step 4: Simplify right side
   9,112.50x = 64,551,914.71
5. Step 5: Solve for x
   x = 64,551,914.71/9,112.50
6. Step 6: Final answer
   x = 7,083.89