Finding the Fourth Proportional to 109,061.10, 163,559.88 and 42,486.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,061.10 : 163,559.88 = 42,486.30 : x
2. Step 2: Convert to fraction form
   109,061.10/163,559.88 = 42,486.30/x
3. Step 3: Cross multiply
   109,061.10x = 163,559.88 × 42,486.30
4. Step 4: Simplify right side
   109,061.10x = 6,949,054,129.64
5. Step 5: Solve for x
   x = 6,949,054,129.64/109,061.10
6. Step 6: Final answer
   x = 63,717.07