Finding the Fourth Proportional to 189,401.90, 261,419.34 and 108,876.14

Step by Step Solution

1. Step 1: Write the proportion equation
   189,401.90 : 261,419.34 = 108,876.14 : x
2. Step 2: Convert to fraction form
   189,401.90/261,419.34 = 108,876.14/x
3. Step 3: Cross multiply
   189,401.90x = 261,419.34 × 108,876.14
4. Step 4: Simplify right side
   189,401.90x = 28,462,327,353.45
5. Step 5: Solve for x
   x = 28,462,327,353.45/189,401.90
6. Step 6: Final answer
   x = 150,274.78