Finding the Fourth Proportional to 52,261.56, 72,121.34 and 28,388.25

Step by Step Solution

1. Step 1: Write the proportion equation
   52,261.56 : 72,121.34 = 28,388.25 : x
2. Step 2: Convert to fraction form
   52,261.56/72,121.34 = 28,388.25/x
3. Step 3: Cross multiply
   52,261.56x = 72,121.34 × 28,388.25
4. Step 4: Simplify right side
   52,261.56x = 2,047,398,338.70
5. Step 5: Solve for x
   x = 2,047,398,338.70/52,261.56
6. Step 6: Final answer
   x = 39,175.99