Finding the Fourth Proportional to 369,799.72, 556,019.98 and 340,570.46

Step by Step Solution

1. Step 1: Write the proportion equation
   369,799.72 : 556,019.98 = 340,570.46 : x
2. Step 2: Convert to fraction form
   369,799.72/556,019.98 = 340,570.46/x
3. Step 3: Cross multiply
   369,799.72x = 556,019.98 × 340,570.46
4. Step 4: Simplify right side
   369,799.72x = 189,363,980,896.42
5. Step 5: Solve for x
   x = 189,363,980,896.42/369,799.72
6. Step 6: Final answer
   x = 512,071.73