Finding the Fourth Proportional to 59,948.37, 89,912.48 and 21,989.79

Step by Step Solution

1. Step 1: Write the proportion equation
   59,948.37 : 89,912.48 = 21,989.79 : x
2. Step 2: Convert to fraction form
   59,948.37/89,912.48 = 21,989.79/x
3. Step 3: Cross multiply
   59,948.37x = 89,912.48 × 21,989.79
4. Step 4: Simplify right side
   59,948.37x = 1,977,156,443.63
5. Step 5: Solve for x
   x = 1,977,156,443.63/59,948.37
6. Step 6: Final answer
   x = 32,980.99