Finding the Fourth Proportional to 105,410.10, 158,115.15 and 105,410.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,410.10 : 158,115.15 = 105,410.10 : x
2. Step 2: Convert to fraction form
   105,410.10/158,115.15 = 105,410.10/x
3. Step 3: Cross multiply
   105,410.10x = 158,115.15 × 105,410.10
4. Step 4: Simplify right side
   105,410.10x = 16,666,933,773.02
5. Step 5: Solve for x
   x = 16,666,933,773.02/105,410.10
6. Step 6: Final answer
   x = 158,115.15