Finding the Fourth Proportional to 109,020.02, 163,498.42 and 42,445.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,020.02 : 163,498.42 = 42,445.30 : x
2. Step 2: Convert to fraction form
   109,020.02/163,498.42 = 42,445.30/x
3. Step 3: Cross multiply
   109,020.02x = 163,498.42 × 42,445.30
4. Step 4: Simplify right side
   109,020.02x = 6,939,739,486.43
5. Step 5: Solve for x
   x = 6,939,739,486.43/109,020.02
6. Step 6: Final answer
   x = 63,655.64