Finding the Fourth Proportional to 37,115.38, 51,217.32 and 21,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,115.38 : 51,217.32 = 21,196.72 : x
2. Step 2: Convert to fraction form
   37,115.38/51,217.32 = 21,196.72/x
3. Step 3: Cross multiply
   37,115.38x = 51,217.32 × 21,196.72
4. Step 4: Simplify right side
   37,115.38x = 1,085,639,191.19
5. Step 5: Solve for x
   x = 1,085,639,191.19/37,115.38
6. Step 6: Final answer
   x = 29,250.39