Finding the Fourth Proportional to 118,172.76, 163,082.52 and 64,460.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,172.76 : 163,082.52 = 64,460.76 : x
2. Step 2: Convert to fraction form
   118,172.76/163,082.52 = 64,460.76/x
3. Step 3: Cross multiply
   118,172.76x = 163,082.52 × 64,460.76
4. Step 4: Simplify right side
   118,172.76x = 10,512,423,181.92
5. Step 5: Solve for x
   x = 10,512,423,181.92/118,172.76
6. Step 6: Final answer
   x = 88,958.09