Finding the Fourth Proportional to 118,909.60, 164,094.60 and 65,196.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,909.60 : 164,094.60 = 65,196.88 : x
2. Step 2: Convert to fraction form
   118,909.60/164,094.60 = 65,196.88/x
3. Step 3: Cross multiply
   118,909.60x = 164,094.60 × 65,196.88
4. Step 4: Simplify right side
   118,909.60x = 10,698,455,944.85
5. Step 5: Solve for x
   x = 10,698,455,944.85/118,909.60
6. Step 6: Final answer
   x = 89,971.34