Finding the Fourth Proportional to 38,162.72, 52,659.54 and 21,166.76

Step by Step Solution

1. Step 1: Write the proportion equation
   38,162.72 : 52,659.54 = 21,166.76 : x
2. Step 2: Convert to fraction form
   38,162.72/52,659.54 = 21,166.76/x
3. Step 3: Cross multiply
   38,162.72x = 52,659.54 × 21,166.76
4. Step 4: Simplify right side
   38,162.72x = 1,114,631,844.89
5. Step 5: Solve for x
   x = 1,114,631,844.89/38,162.72
6. Step 6: Final answer
   x = 29,207.35