Finding the Fourth Proportional to 39,916.69, 55,084.69 and 22,012.45

Step by Step Solution

1. Step 1: Write the proportion equation
   39,916.69 : 55,084.69 = 22,012.45 : x
2. Step 2: Convert to fraction form
   39,916.69/55,084.69 = 22,012.45/x
3. Step 3: Cross multiply
   39,916.69x = 55,084.69 × 22,012.45
4. Step 4: Simplify right side
   39,916.69x = 1,212,548,984.39
5. Step 5: Solve for x
   x = 1,212,548,984.39/39,916.69
6. Step 6: Final answer
   x = 30,376.99