Finding the Fourth Proportional to 109,011.34, 163,563.48 and 42,498.28

Step by Step Solution

1. Step 1: Write the proportion equation
   109,011.34 : 163,563.48 = 42,498.28 : x
2. Step 2: Convert to fraction form
   109,011.34/163,563.48 = 42,498.28/x
3. Step 3: Cross multiply
   109,011.34x = 163,563.48 × 42,498.28
4. Step 4: Simplify right side
   109,011.34x = 6,951,166,570.81
5. Step 5: Solve for x
   x = 6,951,166,570.81/109,011.34
6. Step 6: Final answer
   x = 63,765.54