Finding the Fourth Proportional to 37,518.02, 51,787.89 and 21,608.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,518.02 : 51,787.89 = 21,608.78 : x
2. Step 2: Convert to fraction form
   37,518.02/51,787.89 = 21,608.78/x
3. Step 3: Cross multiply
   37,518.02x = 51,787.89 × 21,608.78
4. Step 4: Simplify right side
   37,518.02x = 1,119,073,121.67
5. Step 5: Solve for x
   x = 1,119,073,121.67/37,518.02
6. Step 6: Final answer
   x = 29,827.62