Finding the Fourth Proportional to 105,087.16, 157,260.90 and 65,662.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,087.16 : 157,260.90 = 65,662.84 : x
2. Step 2: Convert to fraction form
   105,087.16/157,260.90 = 65,662.84/x
3. Step 3: Cross multiply
   105,087.16x = 157,260.90 × 65,662.84
4. Step 4: Simplify right side
   105,087.16x = 10,326,197,314.96
5. Step 5: Solve for x
   x = 10,326,197,314.96/105,087.16
6. Step 6: Final answer
   x = 98,263.17