Finding the Fourth Proportional to 271,411.03, 406,473 and 215,069.98

Step by Step Solution

1. Step 1: Write the proportion equation
   271,411.03 : 406,473 = 215,069.98 : x
2. Step 2: Convert to fraction form
   271,411.03/406,473 = 215,069.98/x
3. Step 3: Cross multiply
   271,411.03x = 406,473 × 215,069.98
4. Step 4: Simplify right side
   271,411.03x = 87,420,139,980.54
5. Step 5: Solve for x
   x = 87,420,139,980.54/271,411.03
6. Step 6: Final answer
   x = 322,095.02