Finding the Fourth Proportional to 118,065.03, 162,928.70 and 64,350.05

Step by Step Solution

1. Step 1: Write the proportion equation
   118,065.03 : 162,928.70 = 64,350.05 : x
2. Step 2: Convert to fraction form
   118,065.03/162,928.70 = 64,350.05/x
3. Step 3: Cross multiply
   118,065.03x = 162,928.70 × 64,350.05
4. Step 4: Simplify right side
   118,065.03x = 10,484,469,096.35
5. Step 5: Solve for x
   x = 10,484,469,096.35/118,065.03
6. Step 6: Final answer
   x = 88,802.50