Finding the Fourth Proportional to 118,481.60, 163,501.56 and 64,765.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,481.60 : 163,501.56 = 64,765.04 : x
2. Step 2: Convert to fraction form
   118,481.60/163,501.56 = 64,765.04/x
3. Step 3: Cross multiply
   118,481.60x = 163,501.56 × 64,765.04
4. Step 4: Simplify right side
   118,481.60x = 10,589,185,073.46
5. Step 5: Solve for x
   x = 10,589,185,073.46/118,481.60
6. Step 6: Final answer
   x = 89,374.09