Finding the Fourth Proportional to 189,483.89, 261,531.72 and 124,964.78

Step by Step Solution

1. Step 1: Write the proportion equation
   189,483.89 : 261,531.72 = 124,964.78 : x
2. Step 2: Convert to fraction form
   189,483.89/261,531.72 = 124,964.78/x
3. Step 3: Cross multiply
   189,483.89x = 261,531.72 × 124,964.78
4. Step 4: Simplify right side
   189,483.89x = 32,682,252,545.16
5. Step 5: Solve for x
   x = 32,682,252,545.16/189,483.89
6. Step 6: Final answer
   x = 172,480.38