Finding the Fourth Proportional to 503,300.42, 755,462.76 and 219,117.98

Step by Step Solution

1. Step 1: Write the proportion equation
   503,300.42 : 755,462.76 = 219,117.98 : x
2. Step 2: Convert to fraction form
   503,300.42/755,462.76 = 219,117.98/x
3. Step 3: Cross multiply
   503,300.42x = 755,462.76 × 219,117.98
4. Step 4: Simplify right side
   503,300.42x = 165,535,473,936.43
5. Step 5: Solve for x
   x = 165,535,473,936.43/503,300.42
6. Step 6: Final answer
   x = 328,899.93