Finding the Fourth Proportional to 117,887.60, 162,684.91 and 64,173.02

Step by Step Solution

1. Step 1: Write the proportion equation
   117,887.60 : 162,684.91 = 64,173.02 : x
2. Step 2: Convert to fraction form
   117,887.60/162,684.91 = 64,173.02/x
3. Step 3: Cross multiply
   117,887.60x = 162,684.91 × 64,173.02
4. Step 4: Simplify right side
   117,887.60x = 10,439,981,619.34
5. Step 5: Solve for x
   x = 10,439,981,619.34/117,887.60
6. Step 6: Final answer
   x = 88,558.78