Finding the Fourth Proportional to 189,633.91, 261,702.73 and 109,061.49

Step by Step Solution

1. Step 1: Write the proportion equation
   189,633.91 : 261,702.73 = 109,061.49 : x
2. Step 2: Convert to fraction form
   189,633.91/261,702.73 = 109,061.49/x
3. Step 3: Cross multiply
   189,633.91x = 261,702.73 × 109,061.49
4. Step 4: Simplify right side
   189,633.91x = 28,541,689,316.50
5. Step 5: Solve for x
   x = 28,541,689,316.50/189,633.91
6. Step 6: Final answer
   x = 150,509.42