Finding the Fourth Proportional to 117,867.18, 162,656.69 and 64,152.58

Step by Step Solution

1. Step 1: Write the proportion equation
   117,867.18 : 162,656.69 = 64,152.58 : x
2. Step 2: Convert to fraction form
   117,867.18/162,656.69 = 64,152.58/x
3. Step 3: Cross multiply
   117,867.18x = 162,656.69 × 64,152.58
4. Step 4: Simplify right side
   117,867.18x = 10,434,846,317.76
5. Step 5: Solve for x
   x = 10,434,846,317.76/117,867.18
6. Step 6: Final answer
   x = 88,530.55