Finding the Fourth Proportional to 7,748.98, 10,693.15 and 4,212.17

Step by Step Solution

1. Step 1: Write the proportion equation
   7,748.98 : 10,693.15 = 4,212.17 : x
2. Step 2: Convert to fraction form
   7,748.98/10,693.15 = 4,212.17/x
3. Step 3: Cross multiply
   7,748.98x = 10,693.15 × 4,212.17
4. Step 4: Simplify right side
   7,748.98x = 45,041,365.64
5. Step 5: Solve for x
   x = 45,041,365.64/7,748.98
6. Step 6: Final answer
   x = 5,812.55