Finding the Fourth Proportional to 12,784.09, 17,637.48 and 7,403.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.09 : 17,637.48 = 7,403.59 : x
2. Step 2: Convert to fraction form
   12,784.09/17,637.48 = 7,403.59/x
3. Step 3: Cross multiply
   12,784.09x = 17,637.48 × 7,403.59
4. Step 4: Simplify right side
   12,784.09x = 130,580,670.55
5. Step 5: Solve for x
   x = 130,580,670.55/12,784.09
6. Step 6: Final answer
   x = 10,214.31