Finding the Fourth Proportional to 56,079.98, 77,388.22 and 30,929.48

Step by Step Solution

1. Step 1: Write the proportion equation
   56,079.98 : 77,388.22 = 30,929.48 : x
2. Step 2: Convert to fraction form
   56,079.98/77,388.22 = 30,929.48/x
3. Step 3: Cross multiply
   56,079.98x = 77,388.22 × 30,929.48
4. Step 4: Simplify right side
   56,079.98x = 2,393,576,938.46
5. Step 5: Solve for x
   x = 2,393,576,938.46/56,079.98
6. Step 6: Final answer
   x = 42,681.49