Finding the Fourth Proportional to 257,300.32, 355,247.72 and 160,651.32

Step by Step Solution

1. Step 1: Write the proportion equation
   257,300.32 : 355,247.72 = 160,651.32 : x
2. Step 2: Convert to fraction form
   257,300.32/355,247.72 = 160,651.32/x
3. Step 3: Cross multiply
   257,300.32x = 355,247.72 × 160,651.32
4. Step 4: Simplify right side
   257,300.32x = 57,071,015,144.99
5. Step 5: Solve for x
   x = 57,071,015,144.99/257,300.32
6. Step 6: Final answer
   x = 221,807.01