Finding the Fourth Proportional to 10,521.93, 15,779.46 and 3,500.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.93 : 15,779.46 = 3,500.06 : x
2. Step 2: Convert to fraction form
   10,521.93/15,779.46 = 3,500.06/x
3. Step 3: Cross multiply
   10,521.93x = 15,779.46 × 3,500.06
4. Step 4: Simplify right side
   10,521.93x = 55,228,977.87
5. Step 5: Solve for x
   x = 55,228,977.87/10,521.93
6. Step 6: Final answer
   x = 5,248.94