Finding the Fourth Proportional to 113,575.77, 156,738.11 and 65,186.51

Step by Step Solution

1. Step 1: Write the proportion equation
   113,575.77 : 156,738.11 = 65,186.51 : x
2. Step 2: Convert to fraction form
   113,575.77/156,738.11 = 65,186.51/x
3. Step 3: Cross multiply
   113,575.77x = 156,738.11 × 65,186.51
4. Step 4: Simplify right side
   113,575.77x = 10,217,209,265.27
5. Step 5: Solve for x
   x = 10,217,209,265.27/113,575.77
6. Step 6: Final answer
   x = 89,959.41