Finding the Fourth Proportional to 42,585.33, 58,736.28 and 31,251

Step by Step Solution

1. Step 1: Write the proportion equation
   42,585.33 : 58,736.28 = 31,251 : x
2. Step 2: Convert to fraction form
   42,585.33/58,736.28 = 31,251/x
3. Step 3: Cross multiply
   42,585.33x = 58,736.28 × 31,251
4. Step 4: Simplify right side
   42,585.33x = 1,835,567,486.28
5. Step 5: Solve for x
   x = 1,835,567,486.28/42,585.33
6. Step 6: Final answer
   x = 43,103.28