Finding the Fourth Proportional to 189,708.52, 261,823.71 and 109,134.58

Step by Step Solution

1. Step 1: Write the proportion equation
   189,708.52 : 261,823.71 = 109,134.58 : x
2. Step 2: Convert to fraction form
   189,708.52/261,823.71 = 109,134.58/x
3. Step 3: Cross multiply
   189,708.52x = 261,823.71 × 109,134.58
4. Step 4: Simplify right side
   189,708.52x = 28,574,020,624.89
5. Step 5: Solve for x
   x = 28,574,020,624.89/189,708.52
6. Step 6: Final answer
   x = 150,620.65