Finding the Fourth Proportional to 37,899, 52,300.62 and 21,131.64

Step by Step Solution

1. Step 1: Write the proportion equation
   37,899 : 52,300.62 = 21,131.64 : x
2. Step 2: Convert to fraction form
   37,899/52,300.62 = 21,131.64/x
3. Step 3: Cross multiply
   37,899x = 52,300.62 × 21,131.64
4. Step 4: Simplify right side
   37,899x = 1,105,197,873.62
5. Step 5: Solve for x
   x = 1,105,197,873.62/37,899
6. Step 6: Final answer
   x = 29,161.66