Finding the Fourth Proportional to 105,530.06, 145,602.60 and 67,826.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105,530.06 : 145,602.60 = 67,826.18 : x
2. Step 2: Convert to fraction form
   105,530.06/145,602.60 = 67,826.18/x
3. Step 3: Cross multiply
   105,530.06x = 145,602.60 × 67,826.18
4. Step 4: Simplify right side
   105,530.06x = 9,875,667,428.06
5. Step 5: Solve for x
   x = 9,875,667,428.06/105,530.06
6. Step 6: Final answer
   x = 93,581.56