Finding the Fourth Proportional to 143,552.77, 215,329.22 and 64,574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,552.77 : 215,329.22 = 64,574.72 : x
2. Step 2: Convert to fraction form
   143,552.77/215,329.22 = 64,574.72/x
3. Step 3: Cross multiply
   143,552.77x = 215,329.22 × 64,574.72
4. Step 4: Simplify right side
   143,552.77x = 13,904,824,089.32
5. Step 5: Solve for x
   x = 13,904,824,089.32/143,552.77
6. Step 6: Final answer
   x = 96,862.11