Finding the Fourth Proportional to 80,570.02, 111,155.61 and 59,399.62

Step by Step Solution

1. Step 1: Write the proportion equation
   80,570.02 : 111,155.61 = 59,399.62 : x
2. Step 2: Convert to fraction form
   80,570.02/111,155.61 = 59,399.62/x
3. Step 3: Cross multiply
   80,570.02x = 111,155.61 × 59,399.62
4. Step 4: Simplify right side
   80,570.02x = 6,602,600,994.87
5. Step 5: Solve for x
   x = 6,602,600,994.87/80,570.02
6. Step 6: Final answer
   x = 81,948.61