Finding the Fourth Proportional to 110,080.09, 165,068.09 and 42,643.71

Step by Step Solution

1. Step 1: Write the proportion equation
   110,080.09 : 165,068.09 = 42,643.71 : x
2. Step 2: Convert to fraction form
   110,080.09/165,068.09 = 42,643.71/x
3. Step 3: Cross multiply
   110,080.09x = 165,068.09 × 42,643.71
4. Step 4: Simplify right side
   110,080.09x = 7,039,116,411.03
5. Step 5: Solve for x
   x = 7,039,116,411.03/110,080.09
6. Step 6: Final answer
   x = 63,945.41