Finding the Fourth Proportional to 107,196.98, 160,762.56 and 74,129.54

Step by Step Solution

1. Step 1: Write the proportion equation
   107,196.98 : 160,762.56 = 74,129.54 : x
2. Step 2: Convert to fraction form
   107,196.98/160,762.56 = 74,129.54/x
3. Step 3: Cross multiply
   107,196.98x = 160,762.56 × 74,129.54
4. Step 4: Simplify right side
   107,196.98x = 11,917,254,622.02
5. Step 5: Solve for x
   x = 11,917,254,622.02/107,196.98
6. Step 6: Final answer
   x = 111,171.55