Finding the Fourth Proportional to 623,189, 934,688.72 and 173,862.56

Step by Step Solution

1. Step 1: Write the proportion equation
   623,189 : 934,688.72 = 173,862.56 : x
2. Step 2: Convert to fraction form
   623,189/934,688.72 = 173,862.56/x
3. Step 3: Cross multiply
   623,189x = 934,688.72 × 173,862.56
4. Step 4: Simplify right side
   623,189x = 162,507,373,662.32
5. Step 5: Solve for x
   x = 162,507,373,662.32/623,189
6. Step 6: Final answer
   x = 260,767.40