Finding the Fourth Proportional to 37,426.31, 51,647.86 and 21,509.54

Step by Step Solution

1. Step 1: Write the proportion equation
   37,426.31 : 51,647.86 = 21,509.54 : x
2. Step 2: Convert to fraction form
   37,426.31/51,647.86 = 21,509.54/x
3. Step 3: Cross multiply
   37,426.31x = 51,647.86 × 21,509.54
4. Step 4: Simplify right side
   37,426.31x = 1,110,921,710.58
5. Step 5: Solve for x
   x = 1,110,921,710.58/37,426.31
6. Step 6: Final answer
   x = 29,682.91