Finding the Fourth Proportional to 118,045.35, 162,897.83 and 64,329.21

Step by Step Solution

1. Step 1: Write the proportion equation
   118,045.35 : 162,897.83 = 64,329.21 : x
2. Step 2: Convert to fraction form
   118,045.35/162,897.83 = 64,329.21/x
3. Step 3: Cross multiply
   118,045.35x = 162,897.83 × 64,329.21
4. Step 4: Simplify right side
   118,045.35x = 10,479,088,634.20
5. Step 5: Solve for x
   x = 10,479,088,634.20/118,045.35
6. Step 6: Final answer
   x = 88,771.72