Finding the Fourth Proportional to 118,021.59, 162,867.69 and 64,307.03

Step by Step Solution

1. Step 1: Write the proportion equation
   118,021.59 : 162,867.69 = 64,307.03 : x
2. Step 2: Convert to fraction form
   118,021.59/162,867.69 = 64,307.03/x
3. Step 3: Cross multiply
   118,021.59x = 162,867.69 × 64,307.03
4. Step 4: Simplify right side
   118,021.59x = 10,473,536,612.52
5. Step 5: Solve for x
   x = 10,473,536,612.52/118,021.59
6. Step 6: Final answer
   x = 88,742.55