Finding the Fourth Proportional to 112,403.42, 168,459.78 and 84,101.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,403.42 : 168,459.78 = 84,101.42 : x
2. Step 2: Convert to fraction form
   112,403.42/168,459.78 = 84,101.42/x
3. Step 3: Cross multiply
   112,403.42x = 168,459.78 × 84,101.42
4. Step 4: Simplify right side
   112,403.42x = 14,167,706,710.89
5. Step 5: Solve for x
   x = 14,167,706,710.89/112,403.42
6. Step 6: Final answer
   x = 126,043.38