Finding the Fourth Proportional to 189,404.42, 261,432.75 and 111,951.81

Step by Step Solution

1. Step 1: Write the proportion equation
   189,404.42 : 261,432.75 = 111,951.81 : x
2. Step 2: Convert to fraction form
   189,404.42/261,432.75 = 111,951.81/x
3. Step 3: Cross multiply
   189,404.42x = 261,432.75 × 111,951.81
4. Step 4: Simplify right side
   189,404.42x = 29,267,868,996.02
5. Step 5: Solve for x
   x = 29,267,868,996.02/189,404.42
6. Step 6: Final answer
   x = 154,525.80