Finding the Fourth Proportional to 38,271.98, 52,816.22 and 21,275.57

Step by Step Solution

1. Step 1: Write the proportion equation
   38,271.98 : 52,816.22 = 21,275.57 : x
2. Step 2: Convert to fraction form
   38,271.98/52,816.22 = 21,275.57/x
3. Step 3: Cross multiply
   38,271.98x = 52,816.22 × 21,275.57
4. Step 4: Simplify right side
   38,271.98x = 1,123,695,185.75
5. Step 5: Solve for x
   x = 1,123,695,185.75/38,271.98
6. Step 6: Final answer
   x = 29,360.78