Finding the Fourth Proportional to 113,801.55, 157,105.20 and 83,140.26

Step by Step Solution

1. Step 1: Write the proportion equation
   113,801.55 : 157,105.20 = 83,140.26 : x
2. Step 2: Convert to fraction form
   113,801.55/157,105.20 = 83,140.26/x
3. Step 3: Cross multiply
   113,801.55x = 157,105.20 × 83,140.26
4. Step 4: Simplify right side
   113,801.55x = 13,061,767,175.35
5. Step 5: Solve for x
   x = 13,061,767,175.35/113,801.55
6. Step 6: Final answer
   x = 114,776.71