Finding the Fourth Proportional to 126,870.92, 190,309.47 and 42,632.31

Step by Step Solution

1. Step 1: Write the proportion equation
   126,870.92 : 190,309.47 = 42,632.31 : x
2. Step 2: Convert to fraction form
   126,870.92/190,309.47 = 42,632.31/x
3. Step 3: Cross multiply
   126,870.92x = 190,309.47 × 42,632.31
4. Step 4: Simplify right side
   126,870.92x = 8,113,331,476.01
5. Step 5: Solve for x
   x = 8,113,331,476.01/126,870.92
6. Step 6: Final answer
   x = 63,949.50