Finding the Fourth Proportional to 118,377.58, 163,364.98 and 64,667.60

Step by Step Solution

1. Step 1: Write the proportion equation
   118,377.58 : 163,364.98 = 64,667.60 : x
2. Step 2: Convert to fraction form
   118,377.58/163,364.98 = 64,667.60/x
3. Step 3: Cross multiply
   118,377.58x = 163,364.98 × 64,667.60
4. Step 4: Simplify right side
   118,377.58x = 10,564,421,180.65
5. Step 5: Solve for x
   x = 10,564,421,180.65/118,377.58
6. Step 6: Final answer
   x = 89,243.43