Finding the Fourth Proportional to 126,372.06, 189,494.69 and 42,102.58

Step by Step Solution

1. Step 1: Write the proportion equation
   126,372.06 : 189,494.69 = 42,102.58 : x
2. Step 2: Convert to fraction form
   126,372.06/189,494.69 = 42,102.58/x
3. Step 3: Cross multiply
   126,372.06x = 189,494.69 × 42,102.58
4. Step 4: Simplify right side
   126,372.06x = 7,978,215,345.30
5. Step 5: Solve for x
   x = 7,978,215,345.30/126,372.06
6. Step 6: Final answer
   x = 63,132.75