Finding the Fourth Proportional to 143,442.90, 215,261.55 and 93,401.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,442.90 : 215,261.55 = 93,401.10 : x
2. Step 2: Convert to fraction form
   143,442.90/215,261.55 = 93,401.10/x
3. Step 3: Cross multiply
   143,442.90x = 215,261.55 × 93,401.10
4. Step 4: Simplify right side
   143,442.90x = 20,105,665,557.71
5. Step 5: Solve for x
   x = 20,105,665,557.71/143,442.90
6. Step 6: Final answer
   x = 140,164.94