Finding the Fourth Proportional to 13,127.56, 19,691.18 and 4,807.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,127.56 : 19,691.18 = 4,807.39 : x
2. Step 2: Convert to fraction form
   13,127.56/19,691.18 = 4,807.39/x
3. Step 3: Cross multiply
   13,127.56x = 19,691.18 × 4,807.39
4. Step 4: Simplify right side
   13,127.56x = 94,663,181.82
5. Step 5: Solve for x
   x = 94,663,181.82/13,127.56
6. Step 6: Final answer
   x = 7,211.03