Finding the Fourth Proportional to 117,719.29, 162,459.25 and 64,003.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,719.29 : 162,459.25 = 64,003.15 : x
2. Step 2: Convert to fraction form
   117,719.29/162,459.25 = 64,003.15/x
3. Step 3: Cross multiply
   117,719.29x = 162,459.25 × 64,003.15
4. Step 4: Simplify right side
   117,719.29x = 10,397,903,746.64
5. Step 5: Solve for x
   x = 10,397,903,746.64/117,719.29
6. Step 6: Final answer
   x = 88,327.95