Finding the Fourth Proportional to 37,450.72, 51,665.94 and 21,531.80

Step by Step Solution

1. Step 1: Write the proportion equation
   37,450.72 : 51,665.94 = 21,531.80 : x
2. Step 2: Convert to fraction form
   37,450.72/51,665.94 = 21,531.80/x
3. Step 3: Cross multiply
   37,450.72x = 51,665.94 × 21,531.80
4. Step 4: Simplify right side
   37,450.72x = 1,112,460,686.89
5. Step 5: Solve for x
   x = 1,112,460,686.89/37,450.72
6. Step 6: Final answer
   x = 29,704.65