Finding the Fourth Proportional to 443,398.54, 665,196.18 and 127,830.82

Step by Step Solution

1. Step 1: Write the proportion equation
   443,398.54 : 665,196.18 = 127,830.82 : x
2. Step 2: Convert to fraction form
   443,398.54/665,196.18 = 127,830.82/x
3. Step 3: Cross multiply
   443,398.54x = 665,196.18 × 127,830.82
4. Step 4: Simplify right side
   443,398.54x = 85,032,573,150.27
5. Step 5: Solve for x
   x = 85,032,573,150.27/443,398.54
6. Step 6: Final answer
   x = 191,774.59