Finding the Fourth Proportional to 5,002.22, 7,507.88 and 2,538.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,002.22 : 7,507.88 = 2,538.74 : x
2. Step 2: Convert to fraction form
   5,002.22/7,507.88 = 2,538.74/x
3. Step 3: Cross multiply
   5,002.22x = 7,507.88 × 2,538.74
4. Step 4: Simplify right side
   5,002.22x = 19,060,555.27
5. Step 5: Solve for x
   x = 19,060,555.27/5,002.22
6. Step 6: Final answer
   x = 3,810.42