Finding the Fourth Proportional to 469,525.61, 704,206.59 and 216,784.55

Step by Step Solution

1. Step 1: Write the proportion equation
   469,525.61 : 704,206.59 = 216,784.55 : x
2. Step 2: Convert to fraction form
   469,525.61/704,206.59 = 216,784.55/x
3. Step 3: Cross multiply
   469,525.61x = 704,206.59 × 216,784.55
4. Step 4: Simplify right side
   469,525.61x = 152,661,105,199.15
5. Step 5: Solve for x
   x = 152,661,105,199.15/469,525.61
6. Step 6: Final answer
   x = 325,139.04