Finding the Fourth Proportional to 109,004.76, 163,475.55 and 42,430.05

Step by Step Solution

1. Step 1: Write the proportion equation
   109,004.76 : 163,475.55 = 42,430.05 : x
2. Step 2: Convert to fraction form
   109,004.76/163,475.55 = 42,430.05/x
3. Step 3: Cross multiply
   109,004.76x = 163,475.55 × 42,430.05
4. Step 4: Simplify right side
   109,004.76x = 6,936,275,760.28
5. Step 5: Solve for x
   x = 6,936,275,760.28/109,004.76
6. Step 6: Final answer
   x = 63,632.78