Finding the Fourth Proportional to 126,355.30, 189,469.56 and 42,085.84

Step by Step Solution

1. Step 1: Write the proportion equation
   126,355.30 : 189,469.56 = 42,085.84 : x
2. Step 2: Convert to fraction form
   126,355.30/189,469.56 = 42,085.84/x
3. Step 3: Cross multiply
   126,355.30x = 189,469.56 × 42,085.84
4. Step 4: Simplify right side
   126,355.30x = 7,973,984,429.25
5. Step 5: Solve for x
   x = 7,973,984,429.25/126,355.30
6. Step 6: Final answer
   x = 63,107.64