Finding the Fourth Proportional to 140,990.68, 194,566.62 and 87,265

Step by Step Solution

1. Step 1: Write the proportion equation
   140,990.68 : 194,566.62 = 87,265 : x
2. Step 2: Convert to fraction form
   140,990.68/194,566.62 = 87,265/x
3. Step 3: Cross multiply
   140,990.68x = 194,566.62 × 87,265
4. Step 4: Simplify right side
   140,990.68x = 16,978,856,094.30
5. Step 5: Solve for x
   x = 16,978,856,094.30/140,990.68
6. Step 6: Final answer
   x = 120,425.38