Finding the Fourth Proportional to 16,776.63, 25,168.59 and 5,090.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,776.63 : 25,168.59 = 5,090.76 : x
2. Step 2: Convert to fraction form
   16,776.63/25,168.59 = 5,090.76/x
3. Step 3: Cross multiply
   16,776.63x = 25,168.59 × 5,090.76
4. Step 4: Simplify right side
   16,776.63x = 128,127,251.23
5. Step 5: Solve for x
   x = 128,127,251.23/16,776.63
6. Step 6: Final answer
   x = 7,637.25