Finding the Fourth Proportional to 231,499.37, 347,262.63 and 89,345.42

Step by Step Solution

1. Step 1: Write the proportion equation
   231,499.37 : 347,262.63 = 89,345.42 : x
2. Step 2: Convert to fraction form
   231,499.37/347,262.63 = 89,345.42/x
3. Step 3: Cross multiply
   231,499.37x = 347,262.63 × 89,345.42
4. Step 4: Simplify right side
   231,499.37x = 31,026,325,527.65
5. Step 5: Solve for x
   x = 31,026,325,527.65/231,499.37
6. Step 6: Final answer
   x = 134,023.37