Finding the Fourth Proportional to 118,187.10, 163,100.39 and 64,473.98

Step by Step Solution

1. Step 1: Write the proportion equation
   118,187.10 : 163,100.39 = 64,473.98 : x
2. Step 2: Convert to fraction form
   118,187.10/163,100.39 = 64,473.98/x
3. Step 3: Cross multiply
   118,187.10x = 163,100.39 × 64,473.98
4. Step 4: Simplify right side
   118,187.10x = 10,515,730,144.98
5. Step 5: Solve for x
   x = 10,515,730,144.98/118,187.10
6. Step 6: Final answer
   x = 88,975.28