Finding the Fourth Proportional to 118,777.31, 163,912.72 and 65,064.26

Step by Step Solution

1. Step 1: Write the proportion equation
   118,777.31 : 163,912.72 = 65,064.26 : x
2. Step 2: Convert to fraction form
   118,777.31/163,912.72 = 65,064.26/x
3. Step 3: Cross multiply
   118,777.31x = 163,912.72 × 65,064.26
4. Step 4: Simplify right side
   118,777.31x = 10,664,859,011.82
5. Step 5: Solve for x
   x = 10,664,859,011.82/118,777.31
6. Step 6: Final answer
   x = 89,788.69