Finding the Fourth Proportional to 140,123.43, 193,580.96 and 91,839.94

Step by Step Solution

1. Step 1: Write the proportion equation
   140,123.43 : 193,580.96 = 91,839.94 : x
2. Step 2: Convert to fraction form
   140,123.43/193,580.96 = 91,839.94/x
3. Step 3: Cross multiply
   140,123.43x = 193,580.96 × 91,839.94
4. Step 4: Simplify right side
   140,123.43x = 17,778,462,808.39
5. Step 5: Solve for x
   x = 17,778,462,808.39/140,123.43
6. Step 6: Final answer
   x = 126,877.16