Finding the Fourth Proportional to 5,146.30, 7,101.90 and 2,788.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,146.30 : 7,101.90 = 2,788.42 : x
2. Step 2: Convert to fraction form
   5,146.30/7,101.90 = 2,788.42/x
3. Step 3: Cross multiply
   5,146.30x = 7,101.90 × 2,788.42
4. Step 4: Simplify right side
   5,146.30x = 19,803,080.00
5. Step 5: Solve for x
   x = 19,803,080.00/5,146.30
6. Step 6: Final answer
   x = 3,848.02