Finding the Fourth Proportional to 52,309.04, 72,185.62 and 28,436.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,309.04 : 72,185.62 = 28,436.31 : x
2. Step 2: Convert to fraction form
   52,309.04/72,185.62 = 28,436.31/x
3. Step 3: Cross multiply
   52,309.04x = 72,185.62 × 28,436.31
4. Step 4: Simplify right side
   52,309.04x = 2,052,692,848.33
5. Step 5: Solve for x
   x = 2,052,692,848.33/52,309.04
6. Step 6: Final answer
   x = 39,241.65