Finding the Fourth Proportional to 495,111.71, 683,265.02 and 301,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   495,111.71 : 683,265.02 = 301,528.50 : x
2. Step 2: Convert to fraction form
   495,111.71/683,265.02 = 301,528.50/x
3. Step 3: Cross multiply
   495,111.71x = 683,265.02 × 301,528.50
4. Step 4: Simplify right side
   495,111.71x = 206,023,875,075.43
5. Step 5: Solve for x
   x = 206,023,875,075.43/495,111.71
6. Step 6: Final answer
   x = 416,115.95