Finding the Fourth Proportional to 13,770.32, 19,003.12 and 7,482.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,770.32 : 19,003.12 = 7,482.80 : x
2. Step 2: Convert to fraction form
   13,770.32/19,003.12 = 7,482.80/x
3. Step 3: Cross multiply
   13,770.32x = 19,003.12 × 7,482.80
4. Step 4: Simplify right side
   13,770.32x = 142,196,546.34
5. Step 5: Solve for x
   x = 142,196,546.34/13,770.32
6. Step 6: Final answer
   x = 10,326.31