Finding the Fourth Proportional to 56,127.93, 77,456.39 and 30,977.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,127.93 : 77,456.39 = 30,977.25 : x
2. Step 2: Convert to fraction form
   56,127.93/77,456.39 = 30,977.25/x
3. Step 3: Cross multiply
   56,127.93x = 77,456.39 × 30,977.25
4. Step 4: Simplify right side
   56,127.93x = 2,399,385,802.24
5. Step 5: Solve for x
   x = 2,399,385,802.24/56,127.93
6. Step 6: Final answer
   x = 42,748.52