Finding the Fourth Proportional to 10,203.68, 15,308.82 and 5,005.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,203.68 : 15,308.82 = 5,005.91 : x
2. Step 2: Convert to fraction form
   10,203.68/15,308.82 = 5,005.91/x
3. Step 3: Cross multiply
   10,203.68x = 15,308.82 × 5,005.91
4. Step 4: Simplify right side
   10,203.68x = 76,634,498.58
5. Step 5: Solve for x
   x = 76,634,498.58/10,203.68
6. Step 6: Final answer
   x = 7,510.48