Finding the Fourth Proportional to 103,623.30, 155,358.15 and 70,260.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,623.30 : 155,358.15 = 70,260.10 : x
2. Step 2: Convert to fraction form
   103,623.30/155,358.15 = 70,260.10/x
3. Step 3: Cross multiply
   103,623.30x = 155,358.15 × 70,260.10
4. Step 4: Simplify right side
   103,623.30x = 10,915,479,154.82
5. Step 5: Solve for x
   x = 10,915,479,154.82/103,623.30
6. Step 6: Final answer
   x = 105,338.08