Finding the Fourth Proportional to 55,752.50, 76,938.72 and 30,602

Step by Step Solution

1. Step 1: Write the proportion equation
   55,752.50 : 76,938.72 = 30,602 : x
2. Step 2: Convert to fraction form
   55,752.50/76,938.72 = 30,602/x
3. Step 3: Cross multiply
   55,752.50x = 76,938.72 × 30,602
4. Step 4: Simplify right side
   55,752.50x = 2,354,478,709.44
5. Step 5: Solve for x
   x = 2,354,478,709.44/55,752.50
6. Step 6: Final answer
   x = 42,230.91