Finding the Fourth Proportional to 37,820.23, 52,187.43 and 21,901.57

Step by Step Solution

1. Step 1: Write the proportion equation
   37,820.23 : 52,187.43 = 21,901.57 : x
2. Step 2: Convert to fraction form
   37,820.23/52,187.43 = 21,901.57/x
3. Step 3: Cross multiply
   37,820.23x = 52,187.43 × 21,901.57
4. Step 4: Simplify right side
   37,820.23x = 1,142,986,651.27
5. Step 5: Solve for x
   x = 1,142,986,651.27/37,820.23
6. Step 6: Final answer
   x = 30,221.57