Finding the Fourth Proportional to 109,018.01, 163,495.42 and 42,443.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,018.01 : 163,495.42 = 42,443.30 : x
2. Step 2: Convert to fraction form
   109,018.01/163,495.42 = 42,443.30/x
3. Step 3: Cross multiply
   109,018.01x = 163,495.42 × 42,443.30
4. Step 4: Simplify right side
   109,018.01x = 6,939,285,159.69
5. Step 5: Solve for x
   x = 6,939,285,159.69/109,018.01
6. Step 6: Final answer
   x = 63,652.65