Finding the Fourth Proportional to 502,109.05, 692,606.20 and 298,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   502,109.05 : 692,606.20 = 298,025.50 : x
2. Step 2: Convert to fraction form
   502,109.05/692,606.20 = 298,025.50/x
3. Step 3: Cross multiply
   502,109.05x = 692,606.20 × 298,025.50
4. Step 4: Simplify right side
   502,109.05x = 206,414,309,058.10
5. Step 5: Solve for x
   x = 206,414,309,058.10/502,109.05
6. Step 6: Final answer
   x = 411,094.58