Finding the Fourth Proportional to 369,544.22, 554,315.31 and 89,061.47

Step by Step Solution

1. Step 1: Write the proportion equation
   369,544.22 : 554,315.31 = 89,061.47 : x
2. Step 2: Convert to fraction form
   369,544.22/554,315.31 = 89,061.47/x
3. Step 3: Cross multiply
   369,544.22x = 554,315.31 × 89,061.47
4. Step 4: Simplify right side
   369,544.22x = 49,368,138,902.48
5. Step 5: Solve for x
   x = 49,368,138,902.48/369,544.22
6. Step 6: Final answer
   x = 133,591.96