Finding the Fourth Proportional to 13,953.98, 19,256.42 and 7,580.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,953.98 : 19,256.42 = 7,580.52 : x
2. Step 2: Convert to fraction form
   13,953.98/19,256.42 = 7,580.52/x
3. Step 3: Cross multiply
   13,953.98x = 19,256.42 × 7,580.52
4. Step 4: Simplify right side
   13,953.98x = 145,973,676.94
5. Step 5: Solve for x
   x = 145,973,676.94/13,953.98
6. Step 6: Final answer
   x = 10,461.08