Finding the Fourth Proportional to 140,978.18, 194,625.48 and 108,878.93

Step by Step Solution

1. Step 1: Write the proportion equation
   140,978.18 : 194,625.48 = 108,878.93 : x
2. Step 2: Convert to fraction form
   140,978.18/194,625.48 = 108,878.93/x
3. Step 3: Cross multiply
   140,978.18x = 194,625.48 × 108,878.93
4. Step 4: Simplify right side
   140,978.18x = 21,190,614,013.14
5. Step 5: Solve for x
   x = 21,190,614,013.14/140,978.18
6. Step 6: Final answer
   x = 150,311.31