Finding the Fourth Proportional to 115,941.96, 160,003.86 and 64,956.84

Step by Step Solution

1. Step 1: Write the proportion equation
   115,941.96 : 160,003.86 = 64,956.84 : x
2. Step 2: Convert to fraction form
   115,941.96/160,003.86 = 64,956.84/x
3. Step 3: Cross multiply
   115,941.96x = 160,003.86 × 64,956.84
4. Step 4: Simplify right side
   115,941.96x = 10,393,345,133.40
5. Step 5: Solve for x
   x = 10,393,345,133.40/115,941.96
6. Step 6: Final answer
   x = 89,642.66