Finding the Fourth Proportional to 52,111.10, 71,913.07 and 28,237.79

Step by Step Solution

1. Step 1: Write the proportion equation
   52,111.10 : 71,913.07 = 28,237.79 : x
2. Step 2: Convert to fraction form
   52,111.10/71,913.07 = 28,237.79/x
3. Step 3: Cross multiply
   52,111.10x = 71,913.07 × 28,237.79
4. Step 4: Simplify right side
   52,111.10x = 2,030,665,738.76
5. Step 5: Solve for x
   x = 2,030,665,738.76/52,111.10
6. Step 6: Final answer
   x = 38,968.01