Finding the Fourth Proportional to 72,513.68, 108,782.04 and 30,961.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,513.68 : 108,782.04 = 30,961.04 : x
2. Step 2: Convert to fraction form
   72,513.68/108,782.04 = 30,961.04/x
3. Step 3: Cross multiply
   72,513.68x = 108,782.04 × 30,961.04
4. Step 4: Simplify right side
   72,513.68x = 3,368,005,091.72
5. Step 5: Solve for x
   x = 3,368,005,091.72/72,513.68
6. Step 6: Final answer
   x = 46,446.48