Finding the Fourth Proportional to 113,719.52, 156,865.20 and 83,451.44

Step by Step Solution

1. Step 1: Write the proportion equation
   113,719.52 : 156,865.20 = 83,451.44 : x
2. Step 2: Convert to fraction form
   113,719.52/156,865.20 = 83,451.44/x
3. Step 3: Cross multiply
   113,719.52x = 156,865.20 × 83,451.44
4. Step 4: Simplify right side
   113,719.52x = 13,090,626,825.89
5. Step 5: Solve for x
   x = 13,090,626,825.89/113,719.52
6. Step 6: Final answer
   x = 115,113.28