Finding the Fourth Proportional to 38,697, 53,401.86 and 22,791.30

Step by Step Solution

1. Step 1: Write the proportion equation
   38,697 : 53,401.86 = 22,791.30 : x
2. Step 2: Convert to fraction form
   38,697/53,401.86 = 22,791.30/x
3. Step 3: Cross multiply
   38,697x = 53,401.86 × 22,791.30
4. Step 4: Simplify right side
   38,697x = 1,217,097,811.82
5. Step 5: Solve for x
   x = 1,217,097,811.82/38,697
6. Step 6: Final answer
   x = 31,451.99