Finding the Fourth Proportional to 143,551.77, 215,327.72 and 64,573.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,551.77 : 215,327.72 = 64,573.72 : x
2. Step 2: Convert to fraction form
   143,551.77/215,327.72 = 64,573.72/x
3. Step 3: Cross multiply
   143,551.77x = 215,327.72 × 64,573.72
4. Step 4: Simplify right side
   143,551.77x = 13,904,511,576.65
5. Step 5: Solve for x
   x = 13,904,511,576.65/143,551.77
6. Step 6: Final answer
   x = 96,860.61