Finding the Fourth Proportional to 341,980.69, 512,946.73 and 105,298.69

Step by Step Solution

1. Step 1: Write the proportion equation
   341,980.69 : 512,946.73 = 105,298.69 : x
2. Step 2: Convert to fraction form
   341,980.69/512,946.73 = 105,298.69/x
3. Step 3: Cross multiply
   341,980.69x = 512,946.73 × 105,298.69
4. Step 4: Simplify right side
   341,980.69x = 54,012,618,708.78
5. Step 5: Solve for x
   x = 54,012,618,708.78/341,980.69
6. Step 6: Final answer
   x = 157,940.55