Finding the Fourth Proportional to 37,142.16, 51,250.77 and 21,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,142.16 : 51,250.77 = 21,223.50 : x
2. Step 2: Convert to fraction form
   37,142.16/51,250.77 = 21,223.50/x
3. Step 3: Cross multiply
   37,142.16x = 51,250.77 × 21,223.50
4. Step 4: Simplify right side
   37,142.16x = 1,087,720,717.10
5. Step 5: Solve for x
   x = 1,087,720,717.10/37,142.16
6. Step 6: Final answer
   x = 29,285.34