Finding the Fourth Proportional to 113,091.63, 156,054.87 and 65,360.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,091.63 : 156,054.87 = 65,360.34 : x
2. Step 2: Convert to fraction form
   113,091.63/156,054.87 = 65,360.34/x
3. Step 3: Cross multiply
   113,091.63x = 156,054.87 × 65,360.34
4. Step 4: Simplify right side
   113,091.63x = 10,199,799,361.86
5. Step 5: Solve for x
   x = 10,199,799,361.86/113,091.63
6. Step 6: Final answer
   x = 90,190.58