Finding the Fourth Proportional to 143,627.86, 215,441.67 and 64,649.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,627.86 : 215,441.67 = 64,649.82 : x
2. Step 2: Convert to fraction form
   143,627.86/215,441.67 = 64,649.82/x
3. Step 3: Cross multiply
   143,627.86x = 215,441.67 × 64,649.82
4. Step 4: Simplify right side
   143,627.86x = 13,928,265,186.00
5. Step 5: Solve for x
   x = 13,928,265,186.00/143,627.86
6. Step 6: Final answer
   x = 96,974.68