Finding the Fourth Proportional to 56,264.63, 77,645.39 and 30,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,264.63 : 77,645.39 = 30,771.50 : x
2. Step 2: Convert to fraction form
   56,264.63/77,645.39 = 30,771.50/x
3. Step 3: Cross multiply
   56,264.63x = 77,645.39 × 30,771.50
4. Step 4: Simplify right side
   56,264.63x = 2,389,264,576.30
5. Step 5: Solve for x
   x = 2,389,264,576.30/56,264.63
6. Step 6: Final answer
   x = 42,464.77