Finding the Fourth Proportional to 59,507.97, 89,048.69 and 51,530.21

Step by Step Solution

1. Step 1: Write the proportion equation
   59,507.97 : 89,048.69 = 51,530.21 : x
2. Step 2: Convert to fraction form
   59,507.97/89,048.69 = 51,530.21/x
3. Step 3: Cross multiply
   59,507.97x = 89,048.69 × 51,530.21
4. Step 4: Simplify right side
   59,507.97x = 4,588,696,993.03
5. Step 5: Solve for x
   x = 4,588,696,993.03/59,507.97
6. Step 6: Final answer
   x = 77,110.63