Finding the Fourth Proportional to 271,410.03, 406,471.50 and 215,068.98

Step by Step Solution

1. Step 1: Write the proportion equation
   271,410.03 : 406,471.50 = 215,068.98 : x
2. Step 2: Convert to fraction form
   271,410.03/406,471.50 = 215,068.98/x
3. Step 3: Cross multiply
   271,410.03x = 406,471.50 × 215,068.98
4. Step 4: Simplify right side
   271,410.03x = 87,419,410,904.07
5. Step 5: Solve for x
   x = 87,419,410,904.07/271,410.03
6. Step 6: Final answer
   x = 322,093.52