Finding the Fourth Proportional to 124,650.50, 186,900.55 and 58,105.57

Step by Step Solution

1. Step 1: Write the proportion equation
   124,650.50 : 186,900.55 = 58,105.57 : x
2. Step 2: Convert to fraction form
   124,650.50/186,900.55 = 58,105.57/x
3. Step 3: Cross multiply
   124,650.50x = 186,900.55 × 58,105.57
4. Step 4: Simplify right side
   124,650.50x = 10,859,962,991.06
5. Step 5: Solve for x
   x = 10,859,962,991.06/124,650.50
6. Step 6: Final answer
   x = 87,123.30