Finding the Fourth Proportional to 113,557.64, 156,674.84 and 65,801.76

Step by Step Solution

1. Step 1: Write the proportion equation
   113,557.64 : 156,674.84 = 65,801.76 : x
2. Step 2: Convert to fraction form
   113,557.64/156,674.84 = 65,801.76/x
3. Step 3: Cross multiply
   113,557.64x = 156,674.84 × 65,801.76
4. Step 4: Simplify right side
   113,557.64x = 10,309,480,219.72
5. Step 5: Solve for x
   x = 10,309,480,219.72/113,557.64
6. Step 6: Final answer
   x = 90,786.32