Finding the Fourth Proportional to 118,422.82, 163,418.67 and 64,709.69

Step by Step Solution

1. Step 1: Write the proportion equation
   118,422.82 : 163,418.67 = 64,709.69 : x
2. Step 2: Convert to fraction form
   118,422.82/163,418.67 = 64,709.69/x
3. Step 3: Cross multiply
   118,422.82x = 163,418.67 × 64,709.69
4. Step 4: Simplify right side
   118,422.82x = 10,574,771,884.46
5. Step 5: Solve for x
   x = 10,574,771,884.46/118,422.82
6. Step 6: Final answer
   x = 89,296.74