Finding the Fourth Proportional to 56,323.26, 77,643.27 and 42,871.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,323.26 : 77,643.27 = 42,871.10 : x
2. Step 2: Convert to fraction form
   56,323.26/77,643.27 = 42,871.10/x
3. Step 3: Cross multiply
   56,323.26x = 77,643.27 × 42,871.10
4. Step 4: Simplify right side
   56,323.26x = 3,328,652,004.28
5. Step 5: Solve for x
   x = 3,328,652,004.28/56,323.26
6. Step 6: Final answer
   x = 59,099.07