Finding the Fourth Proportional to 37,031.28, 51,099.84 and 21,114.24

Step by Step Solution

1. Step 1: Write the proportion equation
   37,031.28 : 51,099.84 = 21,114.24 : x
2. Step 2: Convert to fraction form
   37,031.28/51,099.84 = 21,114.24/x
3. Step 3: Cross multiply
   37,031.28x = 51,099.84 × 21,114.24
4. Step 4: Simplify right side
   37,031.28x = 1,078,934,285.72
5. Step 5: Solve for x
   x = 1,078,934,285.72/37,031.28
6. Step 6: Final answer
   x = 29,135.75