Finding the Fourth Proportional to 37,683, 52,003.20 and 20,688.84

Step by Step Solution

1. Step 1: Write the proportion equation
   37,683 : 52,003.20 = 20,688.84 : x
2. Step 2: Convert to fraction form
   37,683/52,003.20 = 20,688.84/x
3. Step 3: Cross multiply
   37,683x = 52,003.20 × 20,688.84
4. Step 4: Simplify right side
   37,683x = 1,075,885,884.29
5. Step 5: Solve for x
   x = 1,075,885,884.29/37,683
6. Step 6: Final answer
   x = 28,550.96