Finding the Fourth Proportional to 373,086.84, 559,710.18 and 120,381.78

Step by Step Solution

1. Step 1: Write the proportion equation
   373,086.84 : 559,710.18 = 120,381.78 : x
2. Step 2: Convert to fraction form
   373,086.84/559,710.18 = 120,381.78/x
3. Step 3: Cross multiply
   373,086.84x = 559,710.18 × 120,381.78
4. Step 4: Simplify right side
   373,086.84x = 67,378,907,752.52
5. Step 5: Solve for x
   x = 67,378,907,752.52/373,086.84
6. Step 6: Final answer
   x = 180,598.46