Finding the Fourth Proportional to 196,548.86, 294,937.49 and 82,688.31

Step by Step Solution

1. Step 1: Write the proportion equation
   196,548.86 : 294,937.49 = 82,688.31 : x
2. Step 2: Convert to fraction form
   196,548.86/294,937.49 = 82,688.31/x
3. Step 3: Cross multiply
   196,548.86x = 294,937.49 × 82,688.31
4. Step 4: Simplify right side
   196,548.86x = 24,387,882,810.46
5. Step 5: Solve for x
   x = 24,387,882,810.46/196,548.86
6. Step 6: Final answer
   x = 124,080.51