Finding the Fourth Proportional to 86,404.28, 119,192.40 and 59,500.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.28 : 119,192.40 = 59,500.16 : x
2. Step 2: Convert to fraction form
   86,404.28/119,192.40 = 59,500.16/x
3. Step 3: Cross multiply
   86,404.28x = 119,192.40 × 59,500.16
4. Step 4: Simplify right side
   86,404.28x = 7,091,966,870.78
5. Step 5: Solve for x
   x = 7,091,966,870.78/86,404.28
6. Step 6: Final answer
   x = 82,078.88