Finding the Fourth Proportional to 37,787.88, 52,145 and 20,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,787.88 : 52,145 = 20,791.50 : x
2. Step 2: Convert to fraction form
   37,787.88/52,145 = 20,791.50/x
3. Step 3: Cross multiply
   37,787.88x = 52,145 × 20,791.50
4. Step 4: Simplify right side
   37,787.88x = 1,084,172,767.50
5. Step 5: Solve for x
   x = 1,084,172,767.50/37,787.88
6. Step 6: Final answer
   x = 28,691.02