Finding the Fourth Proportional to 59,443.64, 89,102.58 and 21,979.64

Step by Step Solution

1. Step 1: Write the proportion equation
   59,443.64 : 89,102.58 = 21,979.64 : x
2. Step 2: Convert to fraction form
   59,443.64/89,102.58 = 21,979.64/x
3. Step 3: Cross multiply
   59,443.64x = 89,102.58 × 21,979.64
4. Step 4: Simplify right side
   59,443.64x = 1,958,442,631.47
5. Step 5: Solve for x
   x = 1,958,442,631.47/59,443.64
6. Step 6: Final answer
   x = 32,946.21