Finding the Fourth Proportional to 307,061.55, 423,745.82 and 178,025.10

Step by Step Solution

1. Step 1: Write the proportion equation
   307,061.55 : 423,745.82 = 178,025.10 : x
2. Step 2: Convert to fraction form
   307,061.55/423,745.82 = 178,025.10/x
3. Step 3: Cross multiply
   307,061.55x = 423,745.82 × 178,025.10
4. Step 4: Simplify right side
   307,061.55x = 75,437,391,089.96
5. Step 5: Solve for x
   x = 75,437,391,089.96/307,061.55
6. Step 6: Final answer
   x = 245,675.15