Finding the Fourth Proportional to 554,945.31, 832,418.37 and 134,221.59

Step by Step Solution

1. Step 1: Write the proportion equation
   554,945.31 : 832,418.37 = 134,221.59 : x
2. Step 2: Convert to fraction form
   554,945.31/832,418.37 = 134,221.59/x
3. Step 3: Cross multiply
   554,945.31x = 832,418.37 × 134,221.59
4. Step 4: Simplify right side
   554,945.31x = 111,728,517,166.61
5. Step 5: Solve for x
   x = 111,728,517,166.61/554,945.31
6. Step 6: Final answer
   x = 201,332.48