Finding the Fourth Proportional to 118,021.83, 162,870.14 and 64,306.85

Step by Step Solution

1. Step 1: Write the proportion equation
   118,021.83 : 162,870.14 = 64,306.85 : x
2. Step 2: Convert to fraction form
   118,021.83/162,870.14 = 64,306.85/x
3. Step 3: Cross multiply
   118,021.83x = 162,870.14 × 64,306.85
4. Step 4: Simplify right side
   118,021.83x = 10,473,665,925.02
5. Step 5: Solve for x
   x = 10,473,665,925.02/118,021.83
6. Step 6: Final answer
   x = 88,743.47