Finding the Fourth Proportional to 38,910.51, 53,696.73 and 22,143.51

Step by Step Solution

1. Step 1: Write the proportion equation
   38,910.51 : 53,696.73 = 22,143.51 : x
2. Step 2: Convert to fraction form
   38,910.51/53,696.73 = 22,143.51/x
3. Step 3: Cross multiply
   38,910.51x = 53,696.73 × 22,143.51
4. Step 4: Simplify right side
   38,910.51x = 1,189,034,077.72
5. Step 5: Solve for x
   x = 1,189,034,077.72/38,910.51
6. Step 6: Final answer
   x = 30,558.17