Finding the Fourth Proportional to 37,945.13, 52,315.60 and 31,113.98

Step by Step Solution

1. Step 1: Write the proportion equation
   37,945.13 : 52,315.60 = 31,113.98 : x
2. Step 2: Convert to fraction form
   37,945.13/52,315.60 = 31,113.98/x
3. Step 3: Cross multiply
   37,945.13x = 52,315.60 × 31,113.98
4. Step 4: Simplify right side
   37,945.13x = 1,627,746,532.09
5. Step 5: Solve for x
   x = 1,627,746,532.09/37,945.13
6. Step 6: Final answer
   x = 42,897.38