Finding the Fourth Proportional to 37,066.12, 51,147.42 and 21,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,066.12 : 51,147.42 = 21,147.50 : x
2. Step 2: Convert to fraction form
   37,066.12/51,147.42 = 21,147.50/x
3. Step 3: Cross multiply
   37,066.12x = 51,147.42 × 21,147.50
4. Step 4: Simplify right side
   37,066.12x = 1,081,640,064.45
5. Step 5: Solve for x
   x = 1,081,640,064.45/37,066.12
6. Step 6: Final answer
   x = 29,181.37