Finding the Fourth Proportional to 56,476.68, 77,938.42 and 30,983.09

Step by Step Solution

1. Step 1: Write the proportion equation
   56,476.68 : 77,938.42 = 30,983.09 : x
2. Step 2: Convert to fraction form
   56,476.68/77,938.42 = 30,983.09/x
3. Step 3: Cross multiply
   56,476.68x = 77,938.42 × 30,983.09
4. Step 4: Simplify right side
   56,476.68x = 2,414,773,081.32
5. Step 5: Solve for x
   x = 2,414,773,081.32/56,476.68
6. Step 6: Final answer
   x = 42,756.99