Finding the Fourth Proportional to 59,429.21, 89,139.30 and 21,971.76

Step by Step Solution

1. Step 1: Write the proportion equation
   59,429.21 : 89,139.30 = 21,971.76 : x
2. Step 2: Convert to fraction form
   59,429.21/89,139.30 = 21,971.76/x
3. Step 3: Cross multiply
   59,429.21x = 89,139.30 × 21,971.76
4. Step 4: Simplify right side
   59,429.21x = 1,958,547,306.17
5. Step 5: Solve for x
   x = 1,958,547,306.17/59,429.21
6. Step 6: Final answer
   x = 32,955.97