Finding the Fourth Proportional to 28,155.84, 38,863.71 and 16,227.12

Step by Step Solution

1. Step 1: Write the proportion equation
   28,155.84 : 38,863.71 = 16,227.12 : x
2. Step 2: Convert to fraction form
   28,155.84/38,863.71 = 16,227.12/x
3. Step 3: Cross multiply
   28,155.84x = 38,863.71 × 16,227.12
4. Step 4: Simplify right side
   28,155.84x = 630,646,085.82
5. Step 5: Solve for x
   x = 630,646,085.82/28,155.84
6. Step 6: Final answer
   x = 22,398.41