Finding the Fourth Proportional to 189,401.49, 261,418.76 and 108,875.72

Step by Step Solution

1. Step 1: Write the proportion equation
   189,401.49 : 261,418.76 = 108,875.72 : x
2. Step 2: Convert to fraction form
   189,401.49/261,418.76 = 108,875.72/x
3. Step 3: Cross multiply
   189,401.49x = 261,418.76 × 108,875.72
4. Step 4: Simplify right side
   189,401.49x = 28,462,153,865.03
5. Step 5: Solve for x
   x = 28,462,153,865.03/189,401.49
6. Step 6: Final answer
   x = 150,274.18