Finding the Fourth Proportional to 83,870.12, 125,801.10 and 31,275.51

Step by Step Solution

1. Step 1: Write the proportion equation
   83,870.12 : 125,801.10 = 31,275.51 : x
2. Step 2: Convert to fraction form
   83,870.12/125,801.10 = 31,275.51/x
3. Step 3: Cross multiply
   83,870.12x = 125,801.10 × 31,275.51
4. Step 4: Simplify right side
   83,870.12x = 3,934,493,561.06
5. Step 5: Solve for x
   x = 3,934,493,561.06/83,870.12
6. Step 6: Final answer
   x = 46,911.75