Finding the Fourth Proportional to 93,143.37, 139,636.69 and 40,513.22

Step by Step Solution

1. Step 1: Write the proportion equation
   93,143.37 : 139,636.69 = 40,513.22 : x
2. Step 2: Convert to fraction form
   93,143.37/139,636.69 = 40,513.22/x
3. Step 3: Cross multiply
   93,143.37x = 139,636.69 × 40,513.22
4. Step 4: Simplify right side
   93,143.37x = 5,657,131,041.29
5. Step 5: Solve for x
   x = 5,657,131,041.29/93,143.37
6. Step 6: Final answer
   x = 60,735.74