Finding the Fourth Proportional to 37,782.34, 52,139.49 and 21,015.34

Step by Step Solution

1. Step 1: Write the proportion equation
   37,782.34 : 52,139.49 = 21,015.34 : x
2. Step 2: Convert to fraction form
   37,782.34/52,139.49 = 21,015.34/x
3. Step 3: Cross multiply
   37,782.34x = 52,139.49 × 21,015.34
4. Step 4: Simplify right side
   37,782.34x = 1,095,729,109.78
5. Step 5: Solve for x
   x = 1,095,729,109.78/37,782.34
6. Step 6: Final answer
   x = 29,001.09