Finding the Fourth Proportional to 143,326.56, 215,015.68 and 59,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,326.56 : 215,015.68 = 59,040.72 : x
2. Step 2: Convert to fraction form
   143,326.56/215,015.68 = 59,040.72/x
3. Step 3: Cross multiply
   143,326.56x = 215,015.68 × 59,040.72
4. Step 4: Simplify right side
   143,326.56x = 12,694,680,558.49
5. Step 5: Solve for x
   x = 12,694,680,558.49/143,326.56
6. Step 6: Final answer
   x = 88,571.72