Finding the Fourth Proportional to 5,117.02, 7,060.59 and 2,878.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,117.02 : 7,060.59 = 2,878.72 : x
2. Step 2: Convert to fraction form
   5,117.02/7,060.59 = 2,878.72/x
3. Step 3: Cross multiply
   5,117.02x = 7,060.59 × 2,878.72
4. Step 4: Simplify right side
   5,117.02x = 20,325,443.99
5. Step 5: Solve for x
   x = 20,325,443.99/5,117.02
6. Step 6: Final answer
   x = 3,972.13