Finding the Fourth Proportional to 117,756.32, 162,502.16 and 64,040.18

Step by Step Solution

1. Step 1: Write the proportion equation
   117,756.32 : 162,502.16 = 64,040.18 : x
2. Step 2: Convert to fraction form
   117,756.32/162,502.16 = 64,040.18/x
3. Step 3: Cross multiply
   117,756.32x = 162,502.16 × 64,040.18
4. Step 4: Simplify right side
   117,756.32x = 10,406,667,662.84
5. Step 5: Solve for x
   x = 10,406,667,662.84/117,756.32
6. Step 6: Final answer
   x = 88,374.60