Finding the Fourth Proportional to 59,409.20, 89,110.56 and 19,962.20

Step by Step Solution

1. Step 1: Write the proportion equation
   59,409.20 : 89,110.56 = 19,962.20 : x
2. Step 2: Convert to fraction form
   59,409.20/89,110.56 = 19,962.20/x
3. Step 3: Cross multiply
   59,409.20x = 89,110.56 × 19,962.20
4. Step 4: Simplify right side
   59,409.20x = 1,778,842,820.83
5. Step 5: Solve for x
   x = 1,778,842,820.83/59,409.20
6. Step 6: Final answer
   x = 29,942.21