Finding the Fourth Proportional to 93,401.78, 140,243.74 and 74,626.07

Step by Step Solution

1. Step 1: Write the proportion equation
   93,401.78 : 140,243.74 = 74,626.07 : x
2. Step 2: Convert to fraction form
   93,401.78/140,243.74 = 74,626.07/x
3. Step 3: Cross multiply
   93,401.78x = 140,243.74 × 74,626.07
4. Step 4: Simplify right side
   93,401.78x = 10,465,838,270.52
5. Step 5: Solve for x
   x = 10,465,838,270.52/93,401.78
6. Step 6: Final answer
   x = 112,051.81