Finding the Fourth Proportional to 120,425.84, 180,644.52 and 58,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,425.84 : 180,644.52 = 58,148.72 : x
2. Step 2: Convert to fraction form
   120,425.84/180,644.52 = 58,148.72/x
3. Step 3: Cross multiply
   120,425.84x = 180,644.52 × 58,148.72
4. Step 4: Simplify right side
   120,425.84x = 10,504,247,613.01
5. Step 5: Solve for x
   x = 10,504,247,613.01/120,425.84
6. Step 6: Final answer
   x = 87,225.86