Finding the Fourth Proportional to 118,675.37, 163,771.89 and 64,959.91

Step by Step Solution

1. Step 1: Write the proportion equation
   118,675.37 : 163,771.89 = 64,959.91 : x
2. Step 2: Convert to fraction form
   118,675.37/163,771.89 = 64,959.91/x
3. Step 3: Cross multiply
   118,675.37x = 163,771.89 × 64,959.91
4. Step 4: Simplify right side
   118,675.37x = 10,638,606,416.07
5. Step 5: Solve for x
   x = 10,638,606,416.07/118,675.37
6. Step 6: Final answer
   x = 89,644.60