Finding the Fourth Proportional to 56,636, 78,042.42 and 43,811.28

Step by Step Solution

1. Step 1: Write the proportion equation
   56,636 : 78,042.42 = 43,811.28 : x
2. Step 2: Convert to fraction form
   56,636/78,042.42 = 43,811.28/x
3. Step 3: Cross multiply
   56,636x = 78,042.42 × 43,811.28
4. Step 4: Simplify right side
   56,636x = 3,419,138,314.50
5. Step 5: Solve for x
   x = 3,419,138,314.50/56,636
6. Step 6: Final answer
   x = 60,370.41