Finding the Fourth Proportional to 83,870.91, 125,802.18 and 31,276.26

Step by Step Solution

1. Step 1: Write the proportion equation
   83,870.91 : 125,802.18 = 31,276.26 : x
2. Step 2: Convert to fraction form
   83,870.91/125,802.18 = 31,276.26/x
3. Step 3: Cross multiply
   83,870.91x = 125,802.18 × 31,276.26
4. Step 4: Simplify right side
   83,870.91x = 3,934,621,690.25
5. Step 5: Solve for x
   x = 3,934,621,690.25/83,870.91
6. Step 6: Final answer
   x = 46,912.83