Finding the Fourth Proportional to 52,172.10, 71,997.59 and 28,298.87

Step by Step Solution

1. Step 1: Write the proportion equation
   52,172.10 : 71,997.59 = 28,298.87 : x
2. Step 2: Convert to fraction form
   52,172.10/71,997.59 = 28,298.87/x
3. Step 3: Cross multiply
   52,172.10x = 71,997.59 × 28,298.87
4. Step 4: Simplify right side
   52,172.10x = 2,037,450,439.72
5. Step 5: Solve for x
   x = 2,037,450,439.72/52,172.10
6. Step 6: Final answer
   x = 39,052.49