Finding the Fourth Proportional to 107,977.82, 149,009.31 and 60,231.15

Step by Step Solution

1. Step 1: Write the proportion equation
   107,977.82 : 149,009.31 = 60,231.15 : x
2. Step 2: Convert to fraction form
   107,977.82/149,009.31 = 60,231.15/x
3. Step 3: Cross multiply
   107,977.82x = 149,009.31 × 60,231.15
4. Step 4: Simplify right side
   107,977.82x = 8,975,002,102.01
5. Step 5: Solve for x
   x = 8,975,002,102.01/107,977.82
6. Step 6: Final answer
   x = 83,118.95