Finding the Fourth Proportional to 55,933.56, 77,188.28 and 30,783.06

Step by Step Solution

1. Step 1: Write the proportion equation
   55,933.56 : 77,188.28 = 30,783.06 : x
2. Step 2: Convert to fraction form
   55,933.56/77,188.28 = 30,783.06/x
3. Step 3: Cross multiply
   55,933.56x = 77,188.28 × 30,783.06
4. Step 4: Simplify right side
   55,933.56x = 2,376,091,300.62
5. Step 5: Solve for x
   x = 2,376,091,300.62/55,933.56
6. Step 6: Final answer
   x = 42,480.60