Finding the Fourth Proportional to 699,006.16, 964,596.72 and 427,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   699,006.16 : 964,596.72 = 427,528.72 : x
2. Step 2: Convert to fraction form
   699,006.16/964,596.72 = 427,528.72/x
3. Step 3: Cross multiply
   699,006.16x = 964,596.72 × 427,528.72
4. Step 4: Simplify right side
   699,006.16x = 412,392,801,017.80
5. Step 5: Solve for x
   x = 412,392,801,017.80/699,006.16
6. Step 6: Final answer
   x = 589,970.20