Finding the Fourth Proportional to 7,445.39, 10,274.74 and 4,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,445.39 : 10,274.74 = 4,088.50 : x
2. Step 2: Convert to fraction form
   7,445.39/10,274.74 = 4,088.50/x
3. Step 3: Cross multiply
   7,445.39x = 10,274.74 × 4,088.50
4. Step 4: Simplify right side
   7,445.39x = 42,008,274.49
5. Step 5: Solve for x
   x = 42,008,274.49/7,445.39
6. Step 6: Final answer
   x = 5,642.19