Finding the Fourth Proportional to 373,118.86, 514,839.47 and 220,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   373,118.86 : 514,839.47 = 220,145.50 : x
2. Step 2: Convert to fraction form
   373,118.86/514,839.47 = 220,145.50/x
3. Step 3: Cross multiply
   373,118.86x = 514,839.47 × 220,145.50
4. Step 4: Simplify right side
   373,118.86x = 113,339,589,808.89
5. Step 5: Solve for x
   x = 113,339,589,808.89/373,118.86
6. Step 6: Final answer
   x = 303,762.70