Finding the Fourth Proportional to 89,660.32, 123,709.48 and 59,030.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,660.32 : 123,709.48 = 59,030.17 : x
2. Step 2: Convert to fraction form
   89,660.32/123,709.48 = 59,030.17/x
3. Step 3: Cross multiply
   89,660.32x = 123,709.48 × 59,030.17
4. Step 4: Simplify right side
   89,660.32x = 7,302,591,178.16
5. Step 5: Solve for x
   x = 7,302,591,178.16/89,660.32
6. Step 6: Final answer
   x = 81,447.30