Finding the Fourth Proportional to 7,850.82, 10,837.35 and 4,870.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,850.82 : 10,837.35 = 4,870.02 : x
2. Step 2: Convert to fraction form
   7,850.82/10,837.35 = 4,870.02/x
3. Step 3: Cross multiply
   7,850.82x = 10,837.35 × 4,870.02
4. Step 4: Simplify right side
   7,850.82x = 52,778,111.25
5. Step 5: Solve for x
   x = 52,778,111.25/7,850.82
6. Step 6: Final answer
   x = 6,722.62