Finding the Fourth Proportional to 122,609.94, 169,196.31 and 71,627.40

Step by Step Solution

1. Step 1: Write the proportion equation
   122,609.94 : 169,196.31 = 71,627.40 : x
2. Step 2: Convert to fraction form
   122,609.94/169,196.31 = 71,627.40/x
3. Step 3: Cross multiply
   122,609.94x = 169,196.31 × 71,627.40
4. Step 4: Simplify right side
   122,609.94x = 12,119,091,774.89
5. Step 5: Solve for x
   x = 12,119,091,774.89/122,609.94
6. Step 6: Final answer
   x = 98,842.65