Finding the Fourth Proportional to 37,196.47, 51,340.07 and 21,290.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,196.47 : 51,340.07 = 21,290.15 : x
2. Step 2: Convert to fraction form
   37,196.47/51,340.07 = 21,290.15/x
3. Step 3: Cross multiply
   37,196.47x = 51,340.07 × 21,290.15
4. Step 4: Simplify right side
   37,196.47x = 1,093,037,791.31
5. Step 5: Solve for x
   x = 1,093,037,791.31/37,196.47
6. Step 6: Final answer
   x = 29,385.52