Finding the Fourth Proportional to 362,978.20, 544,553.70 and 152,507.80

Step by Step Solution

1. Step 1: Write the proportion equation
   362,978.20 : 544,553.70 = 152,507.80 : x
2. Step 2: Convert to fraction form
   362,978.20/544,553.70 = 152,507.80/x
3. Step 3: Cross multiply
   362,978.20x = 544,553.70 × 152,507.80
4. Step 4: Simplify right side
   362,978.20x = 83,048,686,768.86
5. Step 5: Solve for x
   x = 83,048,686,768.86/362,978.20
6. Step 6: Final answer
   x = 228,798.00