Finding the Fourth Proportional to 55,783.86, 83,592.72 and 30,831.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,783.86 : 83,592.72 = 30,831.08 : x
2. Step 2: Convert to fraction form
   55,783.86/83,592.72 = 30,831.08/x
3. Step 3: Cross multiply
   55,783.86x = 83,592.72 × 30,831.08
4. Step 4: Simplify right side
   55,783.86x = 2,577,253,837.74
5. Step 5: Solve for x
   x = 2,577,253,837.74/55,783.86
6. Step 6: Final answer
   x = 46,200.71