Finding the Fourth Proportional to 113,280.21, 169,909.34 and 34,395.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,280.21 : 169,909.34 = 34,395.12 : x
2. Step 2: Convert to fraction form
   113,280.21/169,909.34 = 34,395.12/x
3. Step 3: Cross multiply
   113,280.21x = 169,909.34 × 34,395.12
4. Step 4: Simplify right side
   113,280.21x = 5,844,051,966.45
5. Step 5: Solve for x
   x = 5,844,051,966.45/113,280.21
6. Step 6: Final answer
   x = 51,589.35