Finding the Fourth Proportional to 108,426.89, 149,697.03 and 69,680.43

Step by Step Solution

1. Step 1: Write the proportion equation
   108,426.89 : 149,697.03 = 69,680.43 : x
2. Step 2: Convert to fraction form
   108,426.89/149,697.03 = 69,680.43/x
3. Step 3: Cross multiply
   108,426.89x = 149,697.03 × 69,680.43
4. Step 4: Simplify right side
   108,426.89x = 10,430,952,323.24
5. Step 5: Solve for x
   x = 10,430,952,323.24/108,426.89
6. Step 6: Final answer
   x = 96,202.64