Finding the Fourth Proportional to 113,311.72, 156,342.18 and 70,849

Step by Step Solution

1. Step 1: Write the proportion equation
   113,311.72 : 156,342.18 = 70,849 : x
2. Step 2: Convert to fraction form
   113,311.72/156,342.18 = 70,849/x
3. Step 3: Cross multiply
   113,311.72x = 156,342.18 × 70,849
4. Step 4: Simplify right side
   113,311.72x = 11,076,687,110.82
5. Step 5: Solve for x
   x = 11,076,687,110.82/113,311.72
6. Step 6: Final answer
   x = 97,754.12