Finding the Fourth Proportional to 96,777.77, 145,095.86 and 65,109.09

Step by Step Solution

1. Step 1: Write the proportion equation
   96,777.77 : 145,095.86 = 65,109.09 : x
2. Step 2: Convert to fraction form
   96,777.77/145,095.86 = 65,109.09/x
3. Step 3: Cross multiply
   96,777.77x = 145,095.86 × 65,109.09
4. Step 4: Simplify right side
   96,777.77x = 9,447,059,081.82
5. Step 5: Solve for x
   x = 9,447,059,081.82/96,777.77
6. Step 6: Final answer
   x = 97,616.01