Finding the Fourth Proportional to 112,768.56, 155,692.32 and 70,389.36

Step by Step Solution

1. Step 1: Write the proportion equation
   112,768.56 : 155,692.32 = 70,389.36 : x
2. Step 2: Convert to fraction form
   112,768.56/155,692.32 = 70,389.36/x
3. Step 3: Cross multiply
   112,768.56x = 155,692.32 × 70,389.36
4. Step 4: Simplify right side
   112,768.56x = 10,959,082,761.72
5. Step 5: Solve for x
   x = 10,959,082,761.72/112,768.56
6. Step 6: Final answer
   x = 97,182.08