Finding the Fourth Proportional to 37,885.50, 52,281.99 and 21,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,885.50 : 52,281.99 = 21,118.50 : x
2. Step 2: Convert to fraction form
   37,885.50/52,281.99 = 21,118.50/x
3. Step 3: Cross multiply
   37,885.50x = 52,281.99 × 21,118.50
4. Step 4: Simplify right side
   37,885.50x = 1,104,117,205.82
5. Step 5: Solve for x
   x = 1,104,117,205.82/37,885.50
6. Step 6: Final answer
   x = 29,143.53