Finding the Fourth Proportional to 112,891.53, 155,795.07 and 64,501.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,891.53 : 155,795.07 = 64,501.42 : x
2. Step 2: Convert to fraction form
   112,891.53/155,795.07 = 64,501.42/x
3. Step 3: Cross multiply
   112,891.53x = 155,795.07 × 64,501.42
4. Step 4: Simplify right side
   112,891.53x = 10,049,003,244.00
5. Step 5: Solve for x
   x = 10,049,003,244.00/112,891.53
6. Step 6: Final answer
   x = 89,014.68