Finding the Fourth Proportional to 231,985.86, 320,130.81 and 131,383.86

Step by Step Solution

1. Step 1: Write the proportion equation
   231,985.86 : 320,130.81 = 131,383.86 : x
2. Step 2: Convert to fraction form
   231,985.86/320,130.81 = 131,383.86/x
3. Step 3: Cross multiply
   231,985.86x = 320,130.81 × 131,383.86
4. Step 4: Simplify right side
   231,985.86x = 42,060,021,522.73
5. Step 5: Solve for x
   x = 42,060,021,522.73/231,985.86
6. Step 6: Final answer
   x = 181,304.25