Finding the Fourth Proportional to 359,493.51, 496,012.59 and 219,756.81

Step by Step Solution

1. Step 1: Write the proportion equation
   359,493.51 : 496,012.59 = 219,756.81 : x
2. Step 2: Convert to fraction form
   359,493.51/496,012.59 = 219,756.81/x
3. Step 3: Cross multiply
   359,493.51x = 496,012.59 × 219,756.81
4. Step 4: Simplify right side
   359,493.51x = 109,002,144,498.24
5. Step 5: Solve for x
   x = 109,002,144,498.24/359,493.51
6. Step 6: Final answer
   x = 303,210.33