Finding the Fourth Proportional to 55,887.36, 77,123.88 and 30,736.32

Step by Step Solution

1. Step 1: Write the proportion equation
   55,887.36 : 77,123.88 = 30,736.32 : x
2. Step 2: Convert to fraction form
   55,887.36/77,123.88 = 30,736.32/x
3. Step 3: Cross multiply
   55,887.36x = 77,123.88 × 30,736.32
4. Step 4: Simplify right side
   55,887.36x = 2,370,504,255.32
5. Step 5: Solve for x
   x = 2,370,504,255.32/55,887.36
6. Step 6: Final answer
   x = 42,415.75