Finding the Fourth Proportional to 13,262.72, 19,889.87 and 4,495.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,262.72 : 19,889.87 = 4,495.58 : x
2. Step 2: Convert to fraction form
   13,262.72/19,889.87 = 4,495.58/x
3. Step 3: Cross multiply
   13,262.72x = 19,889.87 × 4,495.58
4. Step 4: Simplify right side
   13,262.72x = 89,416,501.77
5. Step 5: Solve for x
   x = 89,416,501.77/13,262.72
6. Step 6: Final answer
   x = 6,741.94