Finding the Fourth Proportional to 37,587.88, 51,872.98 and 20,820.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,587.88 : 51,872.98 = 20,820.88 : x
2. Step 2: Convert to fraction form
   37,587.88/51,872.98 = 20,820.88/x
3. Step 3: Cross multiply
   37,587.88x = 51,872.98 × 20,820.88
4. Step 4: Simplify right side
   37,587.88x = 1,080,040,832.46
5. Step 5: Solve for x
   x = 1,080,040,832.46/37,587.88
6. Step 6: Final answer
   x = 28,733.76