Finding the Fourth Proportional to 118,174.54, 163,082.78 and 64,459.54

Step by Step Solution

1. Step 1: Write the proportion equation
   118,174.54 : 163,082.78 = 64,459.54 : x
2. Step 2: Convert to fraction form
   118,174.54/163,082.78 = 64,459.54/x
3. Step 3: Cross multiply
   118,174.54x = 163,082.78 × 64,459.54
4. Step 4: Simplify right side
   118,174.54x = 10,512,240,980.72
5. Step 5: Solve for x
   x = 10,512,240,980.72/118,174.54
6. Step 6: Final answer
   x = 88,955.21