Finding the Fourth Proportional to 12,810.38, 19,216.16 and 3,925.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,810.38 : 19,216.16 = 3,925.07 : x
2. Step 2: Convert to fraction form
   12,810.38/19,216.16 = 3,925.07/x
3. Step 3: Cross multiply
   12,810.38x = 19,216.16 × 3,925.07
4. Step 4: Simplify right side
   12,810.38x = 75,424,753.51
5. Step 5: Solve for x
   x = 75,424,753.51/12,810.38
6. Step 6: Final answer
   x = 5,887.79