Finding the Fourth Proportional to 144,308.17, 199,016.35 and 90,598.19

Step by Step Solution

1. Step 1: Write the proportion equation
   144,308.17 : 199,016.35 = 90,598.19 : x
2. Step 2: Convert to fraction form
   144,308.17/199,016.35 = 90,598.19/x
3. Step 3: Cross multiply
   144,308.17x = 199,016.35 × 90,598.19
4. Step 4: Simplify right side
   144,308.17x = 18,030,521,090.41
5. Step 5: Solve for x
   x = 18,030,521,090.41/144,308.17
6. Step 6: Final answer
   x = 124,944.56