Finding the Fourth Proportional to 107,100.42, 147,798.45 and 64,650.66

Step by Step Solution

1. Step 1: Write the proportion equation
   107,100.42 : 147,798.45 = 64,650.66 : x
2. Step 2: Convert to fraction form
   107,100.42/147,798.45 = 64,650.66/x
3. Step 3: Cross multiply
   107,100.42x = 147,798.45 × 64,650.66
4. Step 4: Simplify right side
   107,100.42x = 9,555,267,339.48
5. Step 5: Solve for x
   x = 9,555,267,339.48/107,100.42
6. Step 6: Final answer
   x = 89,217.83