Finding the Fourth Proportional to 84,495.60, 126,783.50 and 42,379.46

Step by Step Solution

1. Step 1: Write the proportion equation
   84,495.60 : 126,783.50 = 42,379.46 : x
2. Step 2: Convert to fraction form
   84,495.60/126,783.50 = 42,379.46/x
3. Step 3: Cross multiply
   84,495.60x = 126,783.50 × 42,379.46
4. Step 4: Simplify right side
   84,495.60x = 5,373,015,421.10
5. Step 5: Solve for x
   x = 5,373,015,421.10/84,495.60
6. Step 6: Final answer
   x = 63,589.29