Finding the Fourth Proportional to 353,123.52, 487,310.04 and 191,978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   353,123.52 : 487,310.04 = 191,978.16 : x
2. Step 2: Convert to fraction form
   353,123.52/487,310.04 = 191,978.16/x
3. Step 3: Cross multiply
   353,123.52x = 487,310.04 × 191,978.16
4. Step 4: Simplify right side
   353,123.52x = 93,552,884,828.73
5. Step 5: Solve for x
   x = 93,552,884,828.73/353,123.52
6. Step 6: Final answer
   x = 264,929.63