Finding the Fourth Proportional to 37,978.66, 52,376.49 and 31,626.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978.66 : 52,376.49 = 31,626.28 : x
2. Step 2: Convert to fraction form
   37,978.66/52,376.49 = 31,626.28/x
3. Step 3: Cross multiply
   37,978.66x = 52,376.49 × 31,626.28
4. Step 4: Simplify right side
   37,978.66x = 1,656,473,407.22
5. Step 5: Solve for x
   x = 1,656,473,407.22/37,978.66
6. Step 6: Final answer
   x = 43,615.90