Finding the Fourth Proportional to 113,194.16, 156,142.88 and 70,678.88

Step by Step Solution

1. Step 1: Write the proportion equation
   113,194.16 : 156,142.88 = 70,678.88 : x
2. Step 2: Convert to fraction form
   113,194.16/156,142.88 = 70,678.88/x
3. Step 3: Cross multiply
   113,194.16x = 156,142.88 × 70,678.88
4. Step 4: Simplify right side
   113,194.16x = 11,036,003,878.37
5. Step 5: Solve for x
   x = 11,036,003,878.37/113,194.16
6. Step 6: Final answer
   x = 97,496.23