Finding the Fourth Proportional to 118,388.63, 163,374.25 and 64,672.27

Step by Step Solution

1. Step 1: Write the proportion equation
   118,388.63 : 163,374.25 = 64,672.27 : x
2. Step 2: Convert to fraction form
   118,388.63/163,374.25 = 64,672.27/x
3. Step 3: Cross multiply
   118,388.63x = 163,374.25 × 64,672.27
4. Step 4: Simplify right side
   118,388.63x = 10,565,783,607.05
5. Step 5: Solve for x
   x = 10,565,783,607.05/118,388.63
6. Step 6: Final answer
   x = 89,246.61