Finding the Fourth Proportional to 52,241.72, 72,091.71 and 28,367.90

Step by Step Solution

1. Step 1: Write the proportion equation
   52,241.72 : 72,091.71 = 28,367.90 : x
2. Step 2: Convert to fraction form
   52,241.72/72,091.71 = 28,367.90/x
3. Step 3: Cross multiply
   52,241.72x = 72,091.71 × 28,367.90
4. Step 4: Simplify right side
   52,241.72x = 2,045,090,420.11
5. Step 5: Solve for x
   x = 2,045,090,420.11/52,241.72
6. Step 6: Final answer
   x = 39,146.69