Finding the Fourth Proportional to 84,298.43, 126,518.58 and 42,165.87

Step by Step Solution

1. Step 1: Write the proportion equation
   84,298.43 : 126,518.58 = 42,165.87 : x
2. Step 2: Convert to fraction form
   84,298.43/126,518.58 = 42,165.87/x
3. Step 3: Cross multiply
   84,298.43x = 126,518.58 × 42,165.87
4. Step 4: Simplify right side
   84,298.43x = 5,334,765,996.86
5. Step 5: Solve for x
   x = 5,334,765,996.86/84,298.43
6. Step 6: Final answer
   x = 63,284.29