Finding the Fourth Proportional to 570,103.83, 786,689.69 and 385,967.81

Step by Step Solution

1. Step 1: Write the proportion equation
   570,103.83 : 786,689.69 = 385,967.81 : x
2. Step 2: Convert to fraction form
   570,103.83/786,689.69 = 385,967.81/x
3. Step 3: Cross multiply
   570,103.83x = 786,689.69 × 385,967.81
4. Step 4: Simplify right side
   570,103.83x = 303,636,890,935.59
5. Step 5: Solve for x
   x = 303,636,890,935.59/570,103.83
6. Step 6: Final answer
   x = 532,599.28