Finding the Fourth Proportional to 13,770.62, 19,002.84 and 7,801.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,770.62 : 19,002.84 = 7,801.94 : x
2. Step 2: Convert to fraction form
   13,770.62/19,002.84 = 7,801.94/x
3. Step 3: Cross multiply
   13,770.62x = 19,002.84 × 7,801.94
4. Step 4: Simplify right side
   13,770.62x = 148,259,017.51
5. Step 5: Solve for x
   x = 148,259,017.51/13,770.62
6. Step 6: Final answer
   x = 10,766.33