Finding the Fourth Proportional to 59,712.79, 89,495.34 and 30,139.06

Step by Step Solution

1. Step 1: Write the proportion equation
   59,712.79 : 89,495.34 = 30,139.06 : x
2. Step 2: Convert to fraction form
   59,712.79/89,495.34 = 30,139.06/x
3. Step 3: Cross multiply
   59,712.79x = 89,495.34 × 30,139.06
4. Step 4: Simplify right side
   59,712.79x = 2,697,305,421.98
5. Step 5: Solve for x
   x = 2,697,305,421.98/59,712.79
6. Step 6: Final answer
   x = 45,171.32