Finding the Fourth Proportional to 103,284.77, 154,914.85 and 28,412.52

Step by Step Solution

1. Step 1: Write the proportion equation
   103,284.77 : 154,914.85 = 28,412.52 : x
2. Step 2: Convert to fraction form
   103,284.77/154,914.85 = 28,412.52/x
3. Step 3: Cross multiply
   103,284.77x = 154,914.85 × 28,412.52
4. Step 4: Simplify right side
   103,284.77x = 4,401,521,131.86
5. Step 5: Solve for x
   x = 4,401,521,131.86/103,284.77
6. Step 6: Final answer
   x = 42,615.40