Finding the Fourth Proportional to 52,705.35, 72,733.91 and 28,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,705.35 : 72,733.91 = 28,831.50 : x
2. Step 2: Convert to fraction form
   52,705.35/72,733.91 = 28,831.50/x
3. Step 3: Cross multiply
   52,705.35x = 72,733.91 × 28,831.50
4. Step 4: Simplify right side
   52,705.35x = 2,097,027,582.01
5. Step 5: Solve for x
   x = 2,097,027,582.01/52,705.35
6. Step 6: Final answer
   x = 39,787.76