Finding the Fourth Proportional to 37,476.72, 51,721.56 and 21,561.84

Step by Step Solution

1. Step 1: Write the proportion equation
   37,476.72 : 51,721.56 = 21,561.84 : x
2. Step 2: Convert to fraction form
   37,476.72/51,721.56 = 21,561.84/x
3. Step 3: Cross multiply
   37,476.72x = 51,721.56 × 21,561.84
4. Step 4: Simplify right side
   37,476.72x = 1,115,212,001.27
5. Step 5: Solve for x
   x = 1,115,212,001.27/37,476.72
6. Step 6: Final answer
   x = 29,757.46