Finding the Fourth Proportional to 126,354.80, 189,468.81 and 42,085.34

Step by Step Solution

1. Step 1: Write the proportion equation
   126,354.80 : 189,468.81 = 42,085.34 : x
2. Step 2: Convert to fraction form
   126,354.80/189,468.81 = 42,085.34/x
3. Step 3: Cross multiply
   126,354.80x = 189,468.81 × 42,085.34
4. Step 4: Simplify right side
   126,354.80x = 7,973,858,130.47
5. Step 5: Solve for x
   x = 7,973,858,130.47/126,354.80
6. Step 6: Final answer
   x = 63,106.89