Finding the Fourth Proportional to 37,404.72, 51,620.49 and 21,490.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,404.72 : 51,620.49 = 21,490.20 : x
2. Step 2: Convert to fraction form
   37,404.72/51,620.49 = 21,490.20/x
3. Step 3: Cross multiply
   37,404.72x = 51,620.49 × 21,490.20
4. Step 4: Simplify right side
   37,404.72x = 1,109,334,654.20
5. Step 5: Solve for x
   x = 1,109,334,654.20/37,404.72
6. Step 6: Final answer
   x = 29,657.61