Finding the Fourth Proportional to 120,362.32, 180,581.27 and 72,386.14

Step by Step Solution

1. Step 1: Write the proportion equation
   120,362.32 : 180,581.27 = 72,386.14 : x
2. Step 2: Convert to fraction form
   120,362.32/180,581.27 = 72,386.14/x
3. Step 3: Cross multiply
   120,362.32x = 180,581.27 × 72,386.14
4. Step 4: Simplify right side
   120,362.32x = 13,071,581,091.60
5. Step 5: Solve for x
   x = 13,071,581,091.60/120,362.32
6. Step 6: Final answer
   x = 108,601.94