Finding the Fourth Proportional to 353,096.82, 529,432.00 and 142,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   353,096.82 : 529,432.00 = 142,488.72 : x
2. Step 2: Convert to fraction form
   353,096.82/529,432.00 = 142,488.72/x
3. Step 3: Cross multiply
   353,096.82x = 529,432.00 × 142,488.72
4. Step 4: Simplify right side
   353,096.82x = 75,438,087,650.82
5. Step 5: Solve for x
   x = 75,438,087,650.82/353,096.82
6. Step 6: Final answer
   x = 213,647.03