Finding the Fourth Proportional to 140,647.89, 194,086.60 and 76,973.38

Step by Step Solution

1. Step 1: Write the proportion equation
   140,647.89 : 194,086.60 = 76,973.38 : x
2. Step 2: Convert to fraction form
   140,647.89/194,086.60 = 76,973.38/x
3. Step 3: Cross multiply
   140,647.89x = 194,086.60 × 76,973.38
4. Step 4: Simplify right side
   140,647.89x = 14,939,501,614.71
5. Step 5: Solve for x
   x = 14,939,501,614.71/140,647.89
6. Step 6: Final answer
   x = 106,219.17