Finding the Fourth Proportional to 38,191.30, 52,698.06 and 21,838.28

Step by Step Solution

1. Step 1: Write the proportion equation
   38,191.30 : 52,698.06 = 21,838.28 : x
2. Step 2: Convert to fraction form
   38,191.30/52,698.06 = 21,838.28/x
3. Step 3: Cross multiply
   38,191.30x = 52,698.06 × 21,838.28
4. Step 4: Simplify right side
   38,191.30x = 1,150,834,726.25
5. Step 5: Solve for x
   x = 1,150,834,726.25/38,191.30
6. Step 6: Final answer
   x = 30,133.43