Finding the Fourth Proportional to 37,397.76, 51,608.88 and 21,483.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,397.76 : 51,608.88 = 21,483.20 : x
2. Step 2: Convert to fraction form
   37,397.76/51,608.88 = 21,483.20/x
3. Step 3: Cross multiply
   37,397.76x = 51,608.88 × 21,483.20
4. Step 4: Simplify right side
   37,397.76x = 1,108,723,890.82
5. Step 5: Solve for x
   x = 1,108,723,890.82/37,397.76
6. Step 6: Final answer
   x = 29,646.80