Finding the Fourth Proportional to 266,802.10, 400,055.46 and 109,141.30

Step by Step Solution

1. Step 1: Write the proportion equation
   266,802.10 : 400,055.46 = 109,141.30 : x
2. Step 2: Convert to fraction form
   266,802.10/400,055.46 = 109,141.30/x
3. Step 3: Cross multiply
   266,802.10x = 400,055.46 × 109,141.30
4. Step 4: Simplify right side
   266,802.10x = 43,662,572,976.50
5. Step 5: Solve for x
   x = 43,662,572,976.50/266,802.10
6. Step 6: Final answer
   x = 163,651.53