Finding the Fourth Proportional to 260,404.84, 390,665.40 and 110,649.88

Step by Step Solution

1. Step 1: Write the proportion equation
   260,404.84 : 390,665.40 = 110,649.88 : x
2. Step 2: Convert to fraction form
   260,404.84/390,665.40 = 110,649.88/x
3. Step 3: Cross multiply
   260,404.84x = 390,665.40 × 110,649.88
4. Step 4: Simplify right side
   260,404.84x = 43,227,079,630.15
5. Step 5: Solve for x
   x = 43,227,079,630.15/260,404.84
6. Step 6: Final answer
   x = 165,999.52