Finding the Fourth Proportional to 122,025.67, 168,308.62 and 111,986.53

Step by Step Solution

1. Step 1: Write the proportion equation
   122,025.67 : 168,308.62 = 111,986.53 : x
2. Step 2: Convert to fraction form
   122,025.67/168,308.62 = 111,986.53/x
3. Step 3: Cross multiply
   122,025.67x = 168,308.62 × 111,986.53
4. Step 4: Simplify right side
   122,025.67x = 18,848,298,322.89
5. Step 5: Solve for x
   x = 18,848,298,322.89/122,025.67
6. Step 6: Final answer
   x = 154,461.75