Finding the Fourth Proportional to 104,439.83, 144,074.55 and 70,405.25

Step by Step Solution

1. Step 1: Write the proportion equation
   104,439.83 : 144,074.55 = 70,405.25 : x
2. Step 2: Convert to fraction form
   104,439.83/144,074.55 = 70,405.25/x
3. Step 3: Cross multiply
   104,439.83x = 144,074.55 × 70,405.25
4. Step 4: Simplify right side
   104,439.83x = 10,143,605,071.57
5. Step 5: Solve for x
   x = 10,143,605,071.57/104,439.83
6. Step 6: Final answer
   x = 97,123.91