Finding the Fourth Proportional to 52,777.01, 72,831.69 and 28,902.26

Step by Step Solution

1. Step 1: Write the proportion equation
   52,777.01 : 72,831.69 = 28,902.26 : x
2. Step 2: Convert to fraction form
   52,777.01/72,831.69 = 28,902.26/x
3. Step 3: Cross multiply
   52,777.01x = 72,831.69 × 28,902.26
4. Step 4: Simplify right side
   52,777.01x = 2,105,000,076.46
5. Step 5: Solve for x
   x = 2,105,000,076.46/52,777.01
6. Step 6: Final answer
   x = 39,884.80