Finding the Fourth Proportional to 117,887.01, 162,684.09 and 64,172.43

Step by Step Solution

1. Step 1: Write the proportion equation
   117,887.01 : 162,684.09 = 64,172.43 : x
2. Step 2: Convert to fraction form
   117,887.01/162,684.09 = 64,172.43/x
3. Step 3: Cross multiply
   117,887.01x = 162,684.09 × 64,172.43
4. Step 4: Simplify right side
   117,887.01x = 10,439,833,488.86
5. Step 5: Solve for x
   x = 10,439,833,488.86/117,887.01
6. Step 6: Final answer
   x = 88,557.96