Finding the Fourth Proportional to 37,290.32, 55,882.72 and 20,658

Step by Step Solution

1. Step 1: Write the proportion equation
   37,290.32 : 55,882.72 = 20,658 : x
2. Step 2: Convert to fraction form
   37,290.32/55,882.72 = 20,658/x
3. Step 3: Cross multiply
   37,290.32x = 55,882.72 × 20,658
4. Step 4: Simplify right side
   37,290.32x = 1,154,425,229.76
5. Step 5: Solve for x
   x = 1,154,425,229.76/37,290.32
6. Step 6: Final answer
   x = 30,957.77