Finding the Fourth Proportional to 84,196.79, 126,185.82 and 34,218.72

Step by Step Solution

1. Step 1: Write the proportion equation
   84,196.79 : 126,185.82 = 34,218.72 : x
2. Step 2: Convert to fraction form
   84,196.79/126,185.82 = 34,218.72/x
3. Step 3: Cross multiply
   84,196.79x = 126,185.82 × 34,218.72
4. Step 4: Simplify right side
   84,196.79x = 4,317,917,242.55
5. Step 5: Solve for x
   x = 4,317,917,242.55/84,196.79
6. Step 6: Final answer
   x = 51,283.63