Finding the Fourth Proportional to 37,768.88, 52,117.88 and 21,854.36

Step by Step Solution

1. Step 1: Write the proportion equation
   37,768.88 : 52,117.88 = 21,854.36 : x
2. Step 2: Convert to fraction form
   37,768.88/52,117.88 = 21,854.36/x
3. Step 3: Cross multiply
   37,768.88x = 52,117.88 × 21,854.36
4. Step 4: Simplify right side
   37,768.88x = 1,139,002,762.75
5. Step 5: Solve for x
   x = 1,139,002,762.75/37,768.88
6. Step 6: Final answer
   x = 30,157.17