Finding the Fourth Proportional to 37,424.48, 51,645.30 and 20,429

Step by Step Solution

1. Step 1: Write the proportion equation
   37,424.48 : 51,645.30 = 20,429 : x
2. Step 2: Convert to fraction form
   37,424.48/51,645.30 = 20,429/x
3. Step 3: Cross multiply
   37,424.48x = 51,645.30 × 20,429
4. Step 4: Simplify right side
   37,424.48x = 1,055,061,833.70
5. Step 5: Solve for x
   x = 1,055,061,833.70/37,424.48
6. Step 6: Final answer
   x = 28,191.76