Finding the Fourth Proportional to 695,127.02, 1,042,789.22 and 215,392.53

Step by Step Solution

1. Step 1: Write the proportion equation
   695,127.02 : 1,042,789.22 = 215,392.53 : x
2. Step 2: Convert to fraction form
   695,127.02/1,042,789.22 = 215,392.53/x
3. Step 3: Cross multiply
   695,127.02x = 1,042,789.22 × 215,392.53
4. Step 4: Simplify right side
   695,127.02x = 224,609,002,589.42
5. Step 5: Solve for x
   x = 224,609,002,589.42/695,127.02
6. Step 6: Final answer
   x = 323,119.37