Finding the Fourth Proportional to 308,967.56, 426,371.94 and 173,002.76

Step by Step Solution

1. Step 1: Write the proportion equation
   308,967.56 : 426,371.94 = 173,002.76 : x
2. Step 2: Convert to fraction form
   308,967.56/426,371.94 = 173,002.76/x
3. Step 3: Cross multiply
   308,967.56x = 426,371.94 × 173,002.76
4. Step 4: Simplify right side
   308,967.56x = 73,763,522,406.55
5. Step 5: Solve for x
   x = 73,763,522,406.55/308,967.56
6. Step 6: Final answer
   x = 238,741.97