Finding the Fourth Proportional to 56,057.93, 77,359.88 and 30,564.29

Step by Step Solution

1. Step 1: Write the proportion equation
   56,057.93 : 77,359.88 = 30,564.29 : x
2. Step 2: Convert to fraction form
   56,057.93/77,359.88 = 30,564.29/x
3. Step 3: Cross multiply
   56,057.93x = 77,359.88 × 30,564.29
4. Step 4: Simplify right side
   56,057.93x = 2,364,449,653.86
5. Step 5: Solve for x
   x = 2,364,449,653.86/56,057.93
6. Step 6: Final answer
   x = 42,178.68