Finding the Fourth Proportional to 113,096.76, 156,146.60 and 70,121.90

Step by Step Solution

1. Step 1: Write the proportion equation
   113,096.76 : 156,146.60 = 70,121.90 : x
2. Step 2: Convert to fraction form
   113,096.76/156,146.60 = 70,121.90/x
3. Step 3: Cross multiply
   113,096.76x = 156,146.60 × 70,121.90
4. Step 4: Simplify right side
   113,096.76x = 10,949,296,540.38
5. Step 5: Solve for x
   x = 10,949,296,540.38/113,096.76
6. Step 6: Final answer
   x = 96,813.53