Finding the Fourth Proportional to 364,152.90, 546,234.42 and 139,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   364,152.90 : 546,234.42 = 139,524.72 : x
2. Step 2: Convert to fraction form
   364,152.90/546,234.42 = 139,524.72/x
3. Step 3: Cross multiply
   364,152.90x = 546,234.42 × 139,524.72
4. Step 4: Simplify right side
   364,152.90x = 76,213,204,504.86
5. Step 5: Solve for x
   x = 76,213,204,504.86/364,152.90
6. Step 6: Final answer
   x = 209,289.02