Finding the Fourth Proportional to 13,445.52, 18,554.22 and 7,779.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,445.52 : 18,554.22 = 7,779.98 : x
2. Step 2: Convert to fraction form
   13,445.52/18,554.22 = 7,779.98/x
3. Step 3: Cross multiply
   13,445.52x = 18,554.22 × 7,779.98
4. Step 4: Simplify right side
   13,445.52x = 144,351,460.52
5. Step 5: Solve for x
   x = 144,351,460.52/13,445.52
6. Step 6: Final answer
   x = 10,736.03