Finding the Fourth Proportional to 113,178.14, 156,176.69 and 65,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,178.14 : 156,176.69 = 65,434.56 : x
2. Step 2: Convert to fraction form
   113,178.14/156,176.69 = 65,434.56/x
3. Step 3: Cross multiply
   113,178.14x = 156,176.69 × 65,434.56
4. Step 4: Simplify right side
   113,178.14x = 10,219,353,219.26
5. Step 5: Solve for x
   x = 10,219,353,219.26/113,178.14
6. Step 6: Final answer
   x = 90,294.41