Finding the Fourth Proportional to 93,012.78, 139,516.06 and 40,422.27

Step by Step Solution

1. Step 1: Write the proportion equation
   93,012.78 : 139,516.06 = 40,422.27 : x
2. Step 2: Convert to fraction form
   93,012.78/139,516.06 = 40,422.27/x
3. Step 3: Cross multiply
   93,012.78x = 139,516.06 × 40,422.27
4. Step 4: Simplify right side
   93,012.78x = 5,639,555,846.66
5. Step 5: Solve for x
   x = 5,639,555,846.66/93,012.78
6. Step 6: Final answer
   x = 60,632.05