Finding the Fourth Proportional to 16,798,420.72, 25,201,635.72 and 5,438,872.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,798,420.72 : 25,201,635.72 = 5,438,872.72 : x
2. Step 2: Convert to fraction form
   16,798,420.72/25,201,635.72 = 5,438,872.72/x
3. Step 3: Cross multiply
   16,798,420.72x = 25,201,635.72 × 5,438,872.72
4. Step 4: Simplify right side
   16,798,420.72x = 137,068,489,016,885.55
5. Step 5: Solve for x
   x = 137,068,489,016,885.55/16,798,420.72
6. Step 6: Final answer
   x = 8,159,605.67