Finding the Fourth Proportional to 52,330.37, 72,216.63 and 28,457.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,330.37 : 72,216.63 = 28,457.42 : x
2. Step 2: Convert to fraction form
   52,330.37/72,216.63 = 28,457.42/x
3. Step 3: Cross multiply
   52,330.37x = 72,216.63 × 28,457.42
4. Step 4: Simplify right side
   52,330.37x = 2,055,098,609.81
5. Step 5: Solve for x
   x = 2,055,098,609.81/52,330.37
6. Step 6: Final answer
   x = 39,271.63