Finding the Fourth Proportional to 107,091.27, 147,789.77 and 64,641.51

Step by Step Solution

1. Step 1: Write the proportion equation
   107,091.27 : 147,789.77 = 64,641.51 : x
2. Step 2: Convert to fraction form
   107,091.27/147,789.77 = 64,641.51/x
3. Step 3: Cross multiply
   107,091.27x = 147,789.77 × 64,641.51
4. Step 4: Simplify right side
   107,091.27x = 9,553,353,572.15
5. Step 5: Solve for x
   x = 9,553,353,572.15/107,091.27
6. Step 6: Final answer
   x = 89,207.59