Finding the Fourth Proportional to 31,065.93, 42,876.74 and 29,166.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,065.93 : 42,876.74 = 29,166.89 : x
2. Step 2: Convert to fraction form
   31,065.93/42,876.74 = 29,166.89/x
3. Step 3: Cross multiply
   31,065.93x = 42,876.74 × 29,166.89
4. Step 4: Simplify right side
   31,065.93x = 1,250,581,017.67
5. Step 5: Solve for x
   x = 1,250,581,017.67/31,065.93
6. Step 6: Final answer
   x = 40,255.71