Finding the Fourth Proportional to 112,381.56, 155,091.01 and 64,634.85

Step by Step Solution

1. Step 1: Write the proportion equation
   112,381.56 : 155,091.01 = 64,634.85 : x
2. Step 2: Convert to fraction form
   112,381.56/155,091.01 = 64,634.85/x
3. Step 3: Cross multiply
   112,381.56x = 155,091.01 × 64,634.85
4. Step 4: Simplify right side
   112,381.56x = 10,024,284,717.01
5. Step 5: Solve for x
   x = 10,024,284,717.01/112,381.56
6. Step 6: Final answer
   x = 89,198.66