Finding the Fourth Proportional to 107,703.36, 161,638.72 and 74,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,703.36 : 161,638.72 = 74,654.72 : x
2. Step 2: Convert to fraction form
   107,703.36/161,638.72 = 74,654.72/x
3. Step 3: Cross multiply
   107,703.36x = 161,638.72 × 74,654.72
4. Step 4: Simplify right side
   107,703.36x = 12,067,093,382.76
5. Step 5: Solve for x
   x = 12,067,093,382.76/107,703.36
6. Step 6: Final answer
   x = 112,040.08