Finding the Fourth Proportional to 349,665, 524,499.42 and 87,009

Step by Step Solution

1. Step 1: Write the proportion equation
   349,665 : 524,499.42 = 87,009 : x
2. Step 2: Convert to fraction form
   349,665/524,499.42 = 87,009/x
3. Step 3: Cross multiply
   349,665x = 524,499.42 × 87,009
4. Step 4: Simplify right side
   349,665x = 45,636,170,034.78
5. Step 5: Solve for x
   x = 45,636,170,034.78/349,665
6. Step 6: Final answer
   x = 130,513.98