Finding the Fourth Proportional to 37,042.50, 51,118.72 and 20,913.30

Step by Step Solution

1. Step 1: Write the proportion equation
   37,042.50 : 51,118.72 = 20,913.30 : x
2. Step 2: Convert to fraction form
   37,042.50/51,118.72 = 20,913.30/x
3. Step 3: Cross multiply
   37,042.50x = 51,118.72 × 20,913.30
4. Step 4: Simplify right side
   37,042.50x = 1,069,061,126.98
5. Step 5: Solve for x
   x = 1,069,061,126.98/37,042.50
6. Step 6: Final answer
   x = 28,860.39