Finding the Fourth Proportional to 384,646.72, 577,035.69 and 171,491.98

Step by Step Solution

1. Step 1: Write the proportion equation
   384,646.72 : 577,035.69 = 171,491.98 : x
2. Step 2: Convert to fraction form
   384,646.72/577,035.69 = 171,491.98/x
3. Step 3: Cross multiply
   384,646.72x = 577,035.69 × 171,491.98
4. Step 4: Simplify right side
   384,646.72x = 98,956,993,008.77
5. Step 5: Solve for x
   x = 98,956,993,008.77/384,646.72
6. Step 6: Final answer
   x = 257,267.22