Finding the Fourth Proportional to 117,867.16, 162,656.58 and 64,152.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,867.16 : 162,656.58 = 64,152.10 : x
2. Step 2: Convert to fraction form
   117,867.16/162,656.58 = 64,152.10/x
3. Step 3: Cross multiply
   117,867.16x = 162,656.58 × 64,152.10
4. Step 4: Simplify right side
   117,867.16x = 10,434,761,185.82
5. Step 5: Solve for x
   x = 10,434,761,185.82/117,867.16
6. Step 6: Final answer
   x = 88,529.84