Finding the Fourth Proportional to 113,288.55, 156,350.14 and 64,894.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,288.55 : 156,350.14 = 64,894.34 : x
2. Step 2: Convert to fraction form
   113,288.55/156,350.14 = 64,894.34/x
3. Step 3: Cross multiply
   113,288.55x = 156,350.14 × 64,894.34
4. Step 4: Simplify right side
   113,288.55x = 10,146,239,144.21
5. Step 5: Solve for x
   x = 10,146,239,144.21/113,288.55
6. Step 6: Final answer
   x = 89,561.03