Finding the Fourth Proportional to 112,740.96, 155,597.76 and 64,993.44

Step by Step Solution

1. Step 1: Write the proportion equation
   112,740.96 : 155,597.76 = 64,993.44 : x
2. Step 2: Convert to fraction form
   112,740.96/155,597.76 = 64,993.44/x
3. Step 3: Cross multiply
   112,740.96x = 155,597.76 × 64,993.44
4. Step 4: Simplify right side
   112,740.96x = 10,112,833,678.69
5. Step 5: Solve for x
   x = 10,112,833,678.69/112,740.96
6. Step 6: Final answer
   x = 89,699.73