Finding the Fourth Proportional to 113,070.31, 156,049.46 and 64,676.71

Step by Step Solution

1. Step 1: Write the proportion equation
   113,070.31 : 156,049.46 = 64,676.71 : x
2. Step 2: Convert to fraction form
   113,070.31/156,049.46 = 64,676.71/x
3. Step 3: Cross multiply
   113,070.31x = 156,049.46 × 64,676.71
4. Step 4: Simplify right side
   113,070.31x = 10,092,765,670.08
5. Step 5: Solve for x
   x = 10,092,765,670.08/113,070.31
6. Step 6: Final answer
   x = 89,260.97