Finding the Fourth Proportional to 37,855.81, 52,243.34 and 20,860.07

Step by Step Solution

1. Step 1: Write the proportion equation
   37,855.81 : 52,243.34 = 20,860.07 : x
2. Step 2: Convert to fraction form
   37,855.81/52,243.34 = 20,860.07/x
3. Step 3: Cross multiply
   37,855.81x = 52,243.34 × 20,860.07
4. Step 4: Simplify right side
   37,855.81x = 1,089,799,422.59
5. Step 5: Solve for x
   x = 1,089,799,422.59/37,855.81
6. Step 6: Final answer
   x = 28,788.17