Finding the Fourth Proportional to 33,393.61, 50,085.51 and 12,612.25

Step by Step Solution

1. Step 1: Write the proportion equation
   33,393.61 : 50,085.51 = 12,612.25 : x
2. Step 2: Convert to fraction form
   33,393.61/50,085.51 = 12,612.25/x
3. Step 3: Cross multiply
   33,393.61x = 50,085.51 × 12,612.25
4. Step 4: Simplify right side
   33,393.61x = 631,690,973.50
5. Step 5: Solve for x
   x = 631,690,973.50/33,393.61
6. Step 6: Final answer
   x = 18,916.52