Finding the Fourth Proportional to 126,051.48, 189,106.70 and 42,945.48

Step by Step Solution

1. Step 1: Write the proportion equation
   126,051.48 : 189,106.70 = 42,945.48 : x
2. Step 2: Convert to fraction form
   126,051.48/189,106.70 = 42,945.48/x
3. Step 3: Cross multiply
   126,051.48x = 189,106.70 × 42,945.48
4. Step 4: Simplify right side
   126,051.48x = 8,121,278,002.72
5. Step 5: Solve for x
   x = 8,121,278,002.72/126,051.48
6. Step 6: Final answer
   x = 64,428.26