Finding the Fourth Proportional to 112,676.69, 155,502.46 and 64,279.68

Step by Step Solution

1. Step 1: Write the proportion equation
   112,676.69 : 155,502.46 = 64,279.68 : x
2. Step 2: Convert to fraction form
   112,676.69/155,502.46 = 64,279.68/x
3. Step 3: Cross multiply
   112,676.69x = 155,502.46 × 64,279.68
4. Step 4: Simplify right side
   112,676.69x = 9,995,648,046.61
5. Step 5: Solve for x
   x = 9,995,648,046.61/112,676.69
6. Step 6: Final answer
   x = 88,710.88