Finding the Fourth Proportional to 83,881.43, 125,783.27 and 31,276.79

Step by Step Solution

1. Step 1: Write the proportion equation
   83,881.43 : 125,783.27 = 31,276.79 : x
2. Step 2: Convert to fraction form
   83,881.43/125,783.27 = 31,276.79/x
3. Step 3: Cross multiply
   83,881.43x = 125,783.27 × 31,276.79
4. Step 4: Simplify right side
   83,881.43x = 3,934,097,079.38
5. Step 5: Solve for x
   x = 3,934,097,079.38/83,881.43
6. Step 6: Final answer
   x = 46,900.69