Finding the Fourth Proportional to 369,499.53, 554,249.58 and 89,017.05

Step by Step Solution

1. Step 1: Write the proportion equation
   369,499.53 : 554,249.58 = 89,017.05 : x
2. Step 2: Convert to fraction form
   369,499.53/554,249.58 = 89,017.05/x
3. Step 3: Cross multiply
   369,499.53x = 554,249.58 × 89,017.05
4. Step 4: Simplify right side
   369,499.53x = 49,337,662,575.34
5. Step 5: Solve for x
   x = 49,337,662,575.34/369,499.53
6. Step 6: Final answer
   x = 133,525.64