Finding the Fourth Proportional to 31,062.26, 46,368.20 and 28,749.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,062.26 : 46,368.20 = 28,749.72 : x
2. Step 2: Convert to fraction form
   31,062.26/46,368.20 = 28,749.72/x
3. Step 3: Cross multiply
   31,062.26x = 46,368.20 × 28,749.72
4. Step 4: Simplify right side
   31,062.26x = 1,333,072,766.90
5. Step 5: Solve for x
   x = 1,333,072,766.90/31,062.26
6. Step 6: Final answer
   x = 42,916.16