Finding the Fourth Proportional to 17,123,483.21, 25,682,490.68 and 4,990,108.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,123,483.21 : 25,682,490.68 = 4,990,108.55 : x
2. Step 2: Convert to fraction form
   17,123,483.21/25,682,490.68 = 4,990,108.55/x
3. Step 3: Cross multiply
   17,123,483.21x = 25,682,490.68 × 4,990,108.55
4. Step 4: Simplify right side
   17,123,483.21x = 128,158,416,174,200.31
5. Step 5: Solve for x
   x = 128,158,416,174,200.31/17,123,483.21
6. Step 6: Final answer
   x = 7,484,366.04