Finding the Fourth Proportional to 143,550.77, 215,326.22 and 64,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,550.77 : 215,326.22 = 64,572.72 : x
2. Step 2: Convert to fraction form
   143,550.77/215,326.22 = 64,572.72/x
3. Step 3: Cross multiply
   143,550.77x = 215,326.22 × 64,572.72
4. Step 4: Simplify right side
   143,550.77x = 13,904,199,389.85
5. Step 5: Solve for x
   x = 13,904,199,389.85/143,550.77
6. Step 6: Final answer
   x = 96,859.11