Finding the Fourth Proportional to 37,943.42, 52,363.60 and 21,815.96

Step by Step Solution

1. Step 1: Write the proportion equation
   37,943.42 : 52,363.60 = 21,815.96 : x
2. Step 2: Convert to fraction form
   37,943.42/52,363.60 = 21,815.96/x
3. Step 3: Cross multiply
   37,943.42x = 52,363.60 × 21,815.96
4. Step 4: Simplify right side
   37,943.42x = 1,142,361,886.70
5. Step 5: Solve for x
   x = 1,142,361,886.70/37,943.42
6. Step 6: Final answer
   x = 30,106.99