Finding the Fourth Proportional to 13,773.85, 19,007.54 and 7,806.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.85 : 19,007.54 = 7,806.07 : x
2. Step 2: Convert to fraction form
   13,773.85/19,007.54 = 7,806.07/x
3. Step 3: Cross multiply
   13,773.85x = 19,007.54 × 7,806.07
4. Step 4: Simplify right side
   13,773.85x = 148,374,179.82
5. Step 5: Solve for x
   x = 148,374,179.82/13,773.85
6. Step 6: Final answer
   x = 10,772.17