Finding the Fourth Proportional to 56,078.48, 77,387.15 and 30,927.98

Step by Step Solution

1. Step 1: Write the proportion equation
   56,078.48 : 77,387.15 = 30,927.98 : x
2. Step 2: Convert to fraction form
   56,078.48/77,387.15 = 30,927.98/x
3. Step 3: Cross multiply
   56,078.48x = 77,387.15 × 30,927.98
4. Step 4: Simplify right side
   56,078.48x = 2,393,428,498.24
5. Step 5: Solve for x
   x = 2,393,428,498.24/56,078.48
6. Step 6: Final answer
   x = 42,679.98