Finding the Fourth Proportional to 103,401.80, 154,774.65 and 103,401.80

Step by Step Solution

1. Step 1: Write the proportion equation
   103,401.80 : 154,774.65 = 103,401.80 : x
2. Step 2: Convert to fraction form
   103,401.80/154,774.65 = 103,401.80/x
3. Step 3: Cross multiply
   103,401.80x = 154,774.65 × 103,401.80
4. Step 4: Simplify right side
   103,401.80x = 16,003,977,404.37
5. Step 5: Solve for x
   x = 16,003,977,404.37/103,401.80
6. Step 6: Final answer
   x = 154,774.65