Finding the Fourth Proportional to 185,649.02, 256,196.15 and 100,766.09

Step by Step Solution

1. Step 1: Write the proportion equation
   185,649.02 : 256,196.15 = 100,766.09 : x
2. Step 2: Convert to fraction form
   185,649.02/256,196.15 = 100,766.09/x
3. Step 3: Cross multiply
   185,649.02x = 256,196.15 × 100,766.09
4. Step 4: Simplify right side
   185,649.02x = 25,815,884,308.55
5. Step 5: Solve for x
   x = 25,815,884,308.55/185,649.02
6. Step 6: Final answer
   x = 139,057.48