Finding the Fourth Proportional to 394,022,978.01, 543,725,798.43 and 226,732,238.13

Step by Step Solution

1. Step 1: Write the proportion equation
   394,022,978.01 : 543,725,798.43 = 226,732,238.13 : x
2. Step 2: Convert to fraction form
   394,022,978.01/543,725,798.43 = 226,732,238.13/x
3. Step 3: Cross multiply
   394,022,978.01x = 543,725,798.43 × 226,732,238.13
4. Step 4: Simplify right side
   394,022,978.01x = 123,280,167,207,055,120
5. Step 5: Solve for x
   x = 123,280,167,207,055,120/394,022,978.01
6. Step 6: Final answer
   x = 312,875,578.55