Finding the Fourth Proportional to 113,757.58, 156,978.37 and 62,770.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,757.58 : 156,978.37 = 62,770.72 : x
2. Step 2: Convert to fraction form
   113,757.58/156,978.37 = 62,770.72/x
3. Step 3: Cross multiply
   113,757.58x = 156,978.37 × 62,770.72
4. Step 4: Simplify right side
   113,757.58x = 9,853,645,309.33
5. Step 5: Solve for x
   x = 9,853,645,309.33/113,757.58
6. Step 6: Final answer
   x = 86,619.68