Finding the Fourth Proportional to 37,808.37, 52,167.65 and 21,891.87

Step by Step Solution

1. Step 1: Write the proportion equation
   37,808.37 : 52,167.65 = 21,891.87 : x
2. Step 2: Convert to fraction form
   37,808.37/52,167.65 = 21,891.87/x
3. Step 3: Cross multiply
   37,808.37x = 52,167.65 × 21,891.87
4. Step 4: Simplify right side
   37,808.37x = 1,142,047,302.55
5. Step 5: Solve for x
   x = 1,142,047,302.55/37,808.37
6. Step 6: Final answer
   x = 30,206.20