Finding the Fourth Proportional to 31,061.26, 46,366.70 and 28,748.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.26 : 46,366.70 = 28,748.71 : x
2. Step 2: Convert to fraction form
   31,061.26/46,366.70 = 28,748.71/x
3. Step 3: Cross multiply
   31,061.26x = 46,366.70 × 28,748.71
4. Step 4: Simplify right side
   31,061.26x = 1,332,982,811.96
5. Step 5: Solve for x
   x = 1,332,982,811.96/31,061.26
6. Step 6: Final answer
   x = 42,914.64