Finding the Fourth Proportional to 59,599.89, 89,410.92 and 19,621.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,599.89 : 89,410.92 = 19,621.12 : x
2. Step 2: Convert to fraction form
   59,599.89/89,410.92 = 19,621.12/x
3. Step 3: Cross multiply
   59,599.89x = 89,410.92 × 19,621.12
4. Step 4: Simplify right side
   59,599.89x = 1,754,342,390.63
5. Step 5: Solve for x
   x = 1,754,342,390.63/59,599.89
6. Step 6: Final answer
   x = 29,435.33