Finding the Fourth Proportional to 709,061.07, 1,063,093.23 and 259,723.55

Step by Step Solution

1. Step 1: Write the proportion equation
   709,061.07 : 1,063,093.23 = 259,723.55 : x
2. Step 2: Convert to fraction form
   709,061.07/1,063,093.23 = 259,723.55/x
3. Step 3: Cross multiply
   709,061.07x = 1,063,093.23 × 259,723.55
4. Step 4: Simplify right side
   709,061.07x = 276,110,342,361.10
5. Step 5: Solve for x
   x = 276,110,342,361.10/709,061.07
6. Step 6: Final answer
   x = 389,402.77