Finding the Fourth Proportional to 37,867.42, 52,257.18 and 21,100.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,867.42 : 52,257.18 = 21,100.42 : x
2. Step 2: Convert to fraction form
   37,867.42/52,257.18 = 21,100.42/x
3. Step 3: Cross multiply
   37,867.42x = 52,257.18 × 21,100.42
4. Step 4: Simplify right side
   37,867.42x = 1,102,648,446.02
5. Step 5: Solve for x
   x = 1,102,648,446.02/37,867.42
6. Step 6: Final answer
   x = 29,118.66