Finding the Fourth Proportional to 112,152.72, 154,770.90 and 61,165.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,152.72 : 154,770.90 = 61,165.56 : x
2. Step 2: Convert to fraction form
   112,152.72/154,770.90 = 61,165.56/x
3. Step 3: Cross multiply
   112,152.72x = 154,770.90 × 61,165.56
4. Step 4: Simplify right side
   112,152.72x = 9,466,648,770.20
5. Step 5: Solve for x
   x = 9,466,648,770.20/112,152.72
6. Step 6: Final answer
   x = 84,408.55