Finding the Fourth Proportional to 16,946,765.20, 25,420,031.16 and 5,588,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,946,765.20 : 25,420,031.16 = 5,588,128.72 : x
2. Step 2: Convert to fraction form
   16,946,765.20/25,420,031.16 = 5,588,128.72/x
3. Step 3: Cross multiply
   16,946,765.20x = 25,420,031.16 × 5,588,128.72
4. Step 4: Simplify right side
   16,946,765.20x = 142,050,406,188,490.91
5. Step 5: Solve for x
   x = 142,050,406,188,490.91/16,946,765.20
6. Step 6: Final answer
   x = 8,382,154.62