Finding the Fourth Proportional to 37,777.16, 52,134.24 and 21,858.53

Step by Step Solution

1. Step 1: Write the proportion equation
   37,777.16 : 52,134.24 = 21,858.53 : x
2. Step 2: Convert to fraction form
   37,777.16/52,134.24 = 21,858.53/x
3. Step 3: Cross multiply
   37,777.16x = 52,134.24 × 21,858.53
4. Step 4: Simplify right side
   37,777.16x = 1,139,577,849.07
5. Step 5: Solve for x
   x = 1,139,577,849.07/37,777.16
6. Step 6: Final answer
   x = 30,165.79