Finding the Fourth Proportional to 37,051.73, 51,131.25 and 21,136.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,051.73 : 51,131.25 = 21,136.15 : x
2. Step 2: Convert to fraction form
   37,051.73/51,131.25 = 21,136.15/x
3. Step 3: Cross multiply
   37,051.73x = 51,131.25 × 21,136.15
4. Step 4: Simplify right side
   37,051.73x = 1,080,717,769.69
5. Step 5: Solve for x
   x = 1,080,717,769.69/37,051.73
6. Step 6: Final answer
   x = 29,167.81