Finding the Fourth Proportional to 939,540.56, 1,296,555.72 and 509,830.16

Step by Step Solution

1. Step 1: Write the proportion equation
   939,540.56 : 1,296,555.72 = 509,830.16 : x
2. Step 2: Convert to fraction form
   939,540.56/1,296,555.72 = 509,830.16/x
3. Step 3: Cross multiply
   939,540.56x = 1,296,555.72 × 509,830.16
4. Step 4: Simplify right side
   939,540.56x = 661,023,210,176.52
5. Step 5: Solve for x
   x = 661,023,210,176.52/939,540.56
6. Step 6: Final answer
   x = 703,560.06