Finding the Fourth Proportional to 140,849, 194,312.22 and 87,040.70

Step by Step Solution

1. Step 1: Write the proportion equation
   140,849 : 194,312.22 = 87,040.70 : x
2. Step 2: Convert to fraction form
   140,849/194,312.22 = 87,040.70/x
3. Step 3: Cross multiply
   140,849x = 194,312.22 × 87,040.70
4. Step 4: Simplify right side
   140,849x = 16,913,071,647.35
5. Step 5: Solve for x
   x = 16,913,071,647.35/140,849
6. Step 6: Final answer
   x = 120,079.46