Finding the Fourth Proportional to 113,187.84, 156,156.72 and 70,147.68

Step by Step Solution

1. Step 1: Write the proportion equation
   113,187.84 : 156,156.72 = 70,147.68 : x
2. Step 2: Convert to fraction form
   113,187.84/156,156.72 = 70,147.68/x
3. Step 3: Cross multiply
   113,187.84x = 156,156.72 × 70,147.68
4. Step 4: Simplify right side
   113,187.84x = 10,954,031,624.41
5. Step 5: Solve for x
   x = 10,954,031,624.41/113,187.84
6. Step 6: Final answer
   x = 96,777.46