Finding the Fourth Proportional to 105,705.28, 145,842.96 and 69,882.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105,705.28 : 145,842.96 = 69,882.22 : x
2. Step 2: Convert to fraction form
   105,705.28/145,842.96 = 69,882.22/x
3. Step 3: Cross multiply
   105,705.28x = 145,842.96 × 69,882.22
4. Step 4: Simplify right side
   105,705.28x = 10,191,829,816.17
5. Step 5: Solve for x
   x = 10,191,829,816.17/105,705.28
6. Step 6: Final answer
   x = 96,417.41