Finding the Fourth Proportional to 108,178.37, 149,287.23 and 60,426.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,178.37 : 149,287.23 = 60,426.12 : x
2. Step 2: Convert to fraction form
   108,178.37/149,287.23 = 60,426.12/x
3. Step 3: Cross multiply
   108,178.37x = 149,287.23 × 60,426.12
4. Step 4: Simplify right side
   108,178.37x = 9,020,848,074.45
5. Step 5: Solve for x
   x = 9,020,848,074.45/108,178.37
6. Step 6: Final answer
   x = 83,388.65