Finding the Fourth Proportional to 102,087, 140,880.06 and 57,375

Step by Step Solution

1. Step 1: Write the proportion equation
   102,087 : 140,880.06 = 57,375 : x
2. Step 2: Convert to fraction form
   102,087/140,880.06 = 57,375/x
3. Step 3: Cross multiply
   102,087x = 140,880.06 × 57,375
4. Step 4: Simplify right side
   102,087x = 8,082,993,442.50
5. Step 5: Solve for x
   x = 8,082,993,442.50/102,087
6. Step 6: Final answer
   x = 79,177.50