Finding the Fourth Proportional to 412,693.32, 569,274.89 and 259,488.71

Step by Step Solution

1. Step 1: Write the proportion equation
   412,693.32 : 569,274.89 = 259,488.71 : x
2. Step 2: Convert to fraction form
   412,693.32/569,274.89 = 259,488.71/x
3. Step 3: Cross multiply
   412,693.32x = 569,274.89 × 259,488.71
4. Step 4: Simplify right side
   412,693.32x = 147,720,402,697.67
5. Step 5: Solve for x
   x = 147,720,402,697.67/412,693.32
6. Step 6: Final answer
   x = 357,942.32