Finding the Fourth Proportional to 185,758.48, 278,637.69 and 45,515.89

Step by Step Solution

1. Step 1: Write the proportion equation
   185,758.48 : 278,637.69 = 45,515.89 : x
2. Step 2: Convert to fraction form
   185,758.48/278,637.69 = 45,515.89/x
3. Step 3: Cross multiply
   185,758.48x = 278,637.69 × 45,515.89
4. Step 4: Simplify right side
   185,758.48x = 12,682,442,447.89
5. Step 5: Solve for x
   x = 12,682,442,447.89/185,758.48
6. Step 6: Final answer
   x = 68,273.83