Finding the Fourth Proportional to 105,084.32, 145,016.38 and 67,358.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,084.32 : 145,016.38 = 67,358.56 : x
2. Step 2: Convert to fraction form
   105,084.32/145,016.38 = 67,358.56/x
3. Step 3: Cross multiply
   105,084.32x = 145,016.38 × 67,358.56
4. Step 4: Simplify right side
   105,084.32x = 9,768,094,533.21
5. Step 5: Solve for x
   x = 9,768,094,533.21/105,084.32
6. Step 6: Final answer
   x = 92,954.82