Finding the Fourth Proportional to 99,085.27, 148,632.78 and 39,912.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,085.27 : 148,632.78 = 39,912.94 : x
2. Step 2: Convert to fraction form
   99,085.27/148,632.78 = 39,912.94/x
3. Step 3: Cross multiply
   99,085.27x = 148,632.78 × 39,912.94
4. Step 4: Simplify right side
   99,085.27x = 5,932,371,230.17
5. Step 5: Solve for x
   x = 5,932,371,230.17/99,085.27
6. Step 6: Final answer
   x = 59,871.37