Finding the Fourth Proportional to 117,999.10, 162,840.52 and 64,284.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,999.10 : 162,840.52 = 64,284.10 : x
2. Step 2: Convert to fraction form
   117,999.10/162,840.52 = 64,284.10/x
3. Step 3: Cross multiply
   117,999.10x = 162,840.52 × 64,284.10
4. Step 4: Simplify right side
   117,999.10x = 10,468,056,271.73
5. Step 5: Solve for x
   x = 10,468,056,271.73/117,999.10
6. Step 6: Final answer
   x = 88,713.02