Finding the Fourth Proportional to 143,745.32, 215,659.59 and 59,489.94

Step by Step Solution

1. Step 1: Write the proportion equation
   143,745.32 : 215,659.59 = 59,489.94 : x
2. Step 2: Convert to fraction form
   143,745.32/215,659.59 = 59,489.94/x
3. Step 3: Cross multiply
   143,745.32x = 215,659.59 × 59,489.94
4. Step 4: Simplify right side
   143,745.32x = 12,829,576,069.52
5. Step 5: Solve for x
   x = 12,829,576,069.52/143,745.32
6. Step 6: Final answer
   x = 89,252.13