Finding the Fourth Proportional to 250,658.88, 375,900.72 and 100,860.30

Step by Step Solution

1. Step 1: Write the proportion equation
   250,658.88 : 375,900.72 = 100,860.30 : x
2. Step 2: Convert to fraction form
   250,658.88/375,900.72 = 100,860.30/x
3. Step 3: Cross multiply
   250,658.88x = 375,900.72 × 100,860.30
4. Step 4: Simplify right side
   250,658.88x = 37,913,459,389.42
5. Step 5: Solve for x
   x = 37,913,459,389.42/250,658.88
6. Step 6: Final answer
   x = 151,255.20