Finding the Fourth Proportional to 31,279.48, 46,676.69 and 28,485.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,279.48 : 46,676.69 = 28,485.52 : x
2. Step 2: Convert to fraction form
   31,279.48/46,676.69 = 28,485.52/x
3. Step 3: Cross multiply
   31,279.48x = 46,676.69 × 28,485.52
4. Step 4: Simplify right side
   31,279.48x = 1,329,609,786.53
5. Step 5: Solve for x
   x = 1,329,609,786.53/31,279.48
6. Step 6: Final answer
   x = 42,507.41