Finding the Fourth Proportional to 259,401.47, 386,523.59 and 231,104.12

Step by Step Solution

1. Step 1: Write the proportion equation
   259,401.47 : 386,523.59 = 231,104.12 : x
2. Step 2: Convert to fraction form
   259,401.47/386,523.59 = 231,104.12/x
3. Step 3: Cross multiply
   259,401.47x = 386,523.59 × 231,104.12
4. Step 4: Simplify right side
   259,401.47x = 89,327,191,038.05
5. Step 5: Solve for x
   x = 89,327,191,038.05/259,401.47
6. Step 6: Final answer
   x = 344,358.85