Finding the Fourth Proportional to 113,139.82, 169,731.56 and 43,013.67

Step by Step Solution

1. Step 1: Write the proportion equation
   113,139.82 : 169,731.56 = 43,013.67 : x
2. Step 2: Convert to fraction form
   113,139.82/169,731.56 = 43,013.67/x
3. Step 3: Cross multiply
   113,139.82x = 169,731.56 × 43,013.67
4. Step 4: Simplify right side
   113,139.82x = 7,300,777,310.43
5. Step 5: Solve for x
   x = 7,300,777,310.43/113,139.82
6. Step 6: Final answer
   x = 64,528.80