Finding the Fourth Proportional to 89,424, 123,431.04 and 59,616

Step by Step Solution

1. Step 1: Write the proportion equation
   89,424 : 123,431.04 = 59,616 : x
2. Step 2: Convert to fraction form
   89,424/123,431.04 = 59,616/x
3. Step 3: Cross multiply
   89,424x = 123,431.04 × 59,616
4. Step 4: Simplify right side
   89,424x = 7,358,464,880.64
5. Step 5: Solve for x
   x = 7,358,464,880.64/89,424
6. Step 6: Final answer
   x = 82,287.36