Finding the Fourth Proportional to 37,543.20, 51,815.46 and 21,410.54

Step by Step Solution

1. Step 1: Write the proportion equation
   37,543.20 : 51,815.46 = 21,410.54 : x
2. Step 2: Convert to fraction form
   37,543.20/51,815.46 = 21,410.54/x
3. Step 3: Cross multiply
   37,543.20x = 51,815.46 × 21,410.54
4. Step 4: Simplify right side
   37,543.20x = 1,109,396,978.95
5. Step 5: Solve for x
   x = 1,109,396,978.95/37,543.20
6. Step 6: Final answer
   x = 29,549.88