Finding the Fourth Proportional to 113,134.42, 156,090.38 and 65,370.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,134.42 : 156,090.38 = 65,370.34 : x
2. Step 2: Convert to fraction form
   113,134.42/156,090.38 = 65,370.34/x
3. Step 3: Cross multiply
   113,134.42x = 156,090.38 × 65,370.34
4. Step 4: Simplify right side
   113,134.42x = 10,203,681,211.33
5. Step 5: Solve for x
   x = 10,203,681,211.33/113,134.42
6. Step 6: Final answer
   x = 90,190.78