Finding the Fourth Proportional to 37,005.57, 51,064.49 and 20,871.99

Step by Step Solution

1. Step 1: Write the proportion equation
   37,005.57 : 51,064.49 = 20,871.99 : x
2. Step 2: Convert to fraction form
   37,005.57/51,064.49 = 20,871.99/x
3. Step 3: Cross multiply
   37,005.57x = 51,064.49 × 20,871.99
4. Step 4: Simplify right side
   37,005.57x = 1,065,817,576.82
5. Step 5: Solve for x
   x = 1,065,817,576.82/37,005.57
6. Step 6: Final answer
   x = 28,801.54