Finding the Fourth Proportional to 38,185.50, 52,696.02 and 21,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,185.50 : 52,696.02 = 21,418.50 : x
2. Step 2: Convert to fraction form
   38,185.50/52,696.02 = 21,418.50/x
3. Step 3: Cross multiply
   38,185.50x = 52,696.02 × 21,418.50
4. Step 4: Simplify right side
   38,185.50x = 1,128,669,704.37
5. Step 5: Solve for x
   x = 1,128,669,704.37/38,185.50
6. Step 6: Final answer
   x = 29,557.55