Finding the Fourth Proportional to 85,416.69, 128,128.41 and 32,103.30

Step by Step Solution

1. Step 1: Write the proportion equation
   85,416.69 : 128,128.41 = 32,103.30 : x
2. Step 2: Convert to fraction form
   85,416.69/128,128.41 = 32,103.30/x
3. Step 3: Cross multiply
   85,416.69x = 128,128.41 × 32,103.30
4. Step 4: Simplify right side
   85,416.69x = 4,113,344,784.75
5. Step 5: Solve for x
   x = 4,113,344,784.75/85,416.69
6. Step 6: Final answer
   x = 48,156.22