Finding the Fourth Proportional to 231,758.32, 320,012.49 and 186,290.59

Step by Step Solution

1. Step 1: Write the proportion equation
   231,758.32 : 320,012.49 = 186,290.59 : x
2. Step 2: Convert to fraction form
   231,758.32/320,012.49 = 186,290.59/x
3. Step 3: Cross multiply
   231,758.32x = 320,012.49 × 186,290.59
4. Step 4: Simplify right side
   231,758.32x = 59,615,315,569.47
5. Step 5: Solve for x
   x = 59,615,315,569.47/231,758.32
6. Step 6: Final answer
   x = 257,230.53