Finding the Fourth Proportional to 543,172,144.69, 814,750,251.49 and 134,228,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   543,172,144.69 : 814,750,251.49 = 134,228,300.05 : x
2. Step 2: Convert to fraction form
   543,172,144.69/814,750,251.49 = 134,228,300.05/x
3. Step 3: Cross multiply
   543,172,144.69x = 814,750,251.49 × 134,228,300.05
4. Step 4: Simplify right side
   543,172,144.69x = 109,362,541,222,812,688
5. Step 5: Solve for x
   x = 109,362,541,222,812,688/543,172,144.69
6. Step 6: Final answer
   x = 201,340,481.64