Finding the Fourth Proportional to 111,139.43, 153,402.05 and 68,673.96

Step by Step Solution

1. Step 1: Write the proportion equation
   111,139.43 : 153,402.05 = 68,673.96 : x
2. Step 2: Convert to fraction form
   111,139.43/153,402.05 = 68,673.96/x
3. Step 3: Cross multiply
   111,139.43x = 153,402.05 × 68,673.96
4. Step 4: Simplify right side
   111,139.43x = 10,534,726,417.30
5. Step 5: Solve for x
   x = 10,534,726,417.30/111,139.43
6. Step 6: Final answer
   x = 94,788.38