Finding the Fourth Proportional to 37,905.42, 52,308.90 and 21,992.61

Step by Step Solution

1. Step 1: Write the proportion equation
   37,905.42 : 52,308.90 = 21,992.61 : x
2. Step 2: Convert to fraction form
   37,905.42/52,308.90 = 21,992.61/x
3. Step 3: Cross multiply
   37,905.42x = 52,308.90 × 21,992.61
4. Step 4: Simplify right side
   37,905.42x = 1,150,409,237.23
5. Step 5: Solve for x
   x = 1,150,409,237.23/37,905.42
6. Step 6: Final answer
   x = 30,349.47