Finding the Fourth Proportional to 12,925.53, 19,387.89 and 3,691.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,925.53 : 19,387.89 = 3,691.53 : x
2. Step 2: Convert to fraction form
   12,925.53/19,387.89 = 3,691.53/x
3. Step 3: Cross multiply
   12,925.53x = 19,387.89 × 3,691.53
4. Step 4: Simplify right side
   12,925.53x = 71,570,977.57
5. Step 5: Solve for x
   x = 71,570,977.57/12,925.53
6. Step 6: Final answer
   x = 5,537.18