Finding the Fourth Proportional to 454,071.42, 626,622.89 and 250,123.28

Step by Step Solution

1. Step 1: Write the proportion equation
   454,071.42 : 626,622.89 = 250,123.28 : x
2. Step 2: Convert to fraction form
   454,071.42/626,622.89 = 250,123.28/x
3. Step 3: Cross multiply
   454,071.42x = 626,622.89 × 250,123.28
4. Step 4: Simplify right side
   454,071.42x = 156,732,968,186.15
5. Step 5: Solve for x
   x = 156,732,968,186.15/454,071.42
6. Step 6: Final answer
   x = 345,172.50