Finding the Fourth Proportional to 37,128.98, 51,229.06 and 20,996.62

Step by Step Solution

1. Step 1: Write the proportion equation
   37,128.98 : 51,229.06 = 20,996.62 : x
2. Step 2: Convert to fraction form
   37,128.98/51,229.06 = 20,996.62/x
3. Step 3: Cross multiply
   37,128.98x = 51,229.06 × 20,996.62
4. Step 4: Simplify right side
   37,128.98x = 1,075,636,925.21
5. Step 5: Solve for x
   x = 1,075,636,925.21/37,128.98
6. Step 6: Final answer
   x = 28,970.28