Finding the Fourth Proportional to 109,642.89, 151,265.49 and 68,789.70

Step by Step Solution

1. Step 1: Write the proportion equation
   109,642.89 : 151,265.49 = 68,789.70 : x
2. Step 2: Convert to fraction form
   109,642.89/151,265.49 = 68,789.70/x
3. Step 3: Cross multiply
   109,642.89x = 151,265.49 × 68,789.70
4. Step 4: Simplify right side
   109,642.89x = 10,405,507,677.45
5. Step 5: Solve for x
   x = 10,405,507,677.45/109,642.89
6. Step 6: Final answer
   x = 94,903.62