Finding the Fourth Proportional to 195,080.31, 269,209.85 and 105,656.31

Step by Step Solution

1. Step 1: Write the proportion equation
   195,080.31 : 269,209.85 = 105,656.31 : x
2. Step 2: Convert to fraction form
   195,080.31/269,209.85 = 105,656.31/x
3. Step 3: Cross multiply
   195,080.31x = 269,209.85 × 105,656.31
4. Step 4: Simplify right side
   195,080.31x = 28,443,718,838.37
5. Step 5: Solve for x
   x = 28,443,718,838.37/195,080.31
6. Step 6: Final answer
   x = 145,805.18