Finding the Fourth Proportional to 118,116.72, 177,168.96 and 64,910.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,116.72 : 177,168.96 = 64,910.88 : x
2. Step 2: Convert to fraction form
   118,116.72/177,168.96 = 64,910.88/x
3. Step 3: Cross multiply
   118,116.72x = 177,168.96 × 64,910.88
4. Step 4: Simplify right side
   118,116.72x = 11,500,193,102.28
5. Step 5: Solve for x
   x = 11,500,193,102.28/118,116.72
6. Step 6: Final answer
   x = 97,362.96