Finding the Fourth Proportional to 189,025.65, 260,860.10 and 116,401.05

Step by Step Solution

1. Step 1: Write the proportion equation
   189,025.65 : 260,860.10 = 116,401.05 : x
2. Step 2: Convert to fraction form
   189,025.65/260,860.10 = 116,401.05/x
3. Step 3: Cross multiply
   189,025.65x = 260,860.10 × 116,401.05
4. Step 4: Simplify right side
   189,025.65x = 30,364,388,961.10
5. Step 5: Solve for x
   x = 30,364,388,961.10/189,025.65
6. Step 6: Final answer
   x = 160,636.34