Finding the Fourth Proportional to 9,036.78, 13,551.81 and 3,112.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.78 : 13,551.81 = 3,112.02 : x
2. Step 2: Convert to fraction form
   9,036.78/13,551.81 = 3,112.02/x
3. Step 3: Cross multiply
   9,036.78x = 13,551.81 × 3,112.02
4. Step 4: Simplify right side
   9,036.78x = 42,173,503.76
5. Step 5: Solve for x
   x = 42,173,503.76/9,036.78
6. Step 6: Final answer
   x = 4,666.87