Finding the Fourth Proportional to 92,820.23, 139,208.05 and 42,852.32

Step by Step Solution

1. Step 1: Write the proportion equation
   92,820.23 : 139,208.05 = 42,852.32 : x
2. Step 2: Convert to fraction form
   92,820.23/139,208.05 = 42,852.32/x
3. Step 3: Cross multiply
   92,820.23x = 139,208.05 × 42,852.32
4. Step 4: Simplify right side
   92,820.23x = 5,965,388,567.78
5. Step 5: Solve for x
   x = 5,965,388,567.78/92,820.23
6. Step 6: Final answer
   x = 64,268.19