Finding the Fourth Proportional to 113,670.83, 156,874.69 and 62,688.22

Step by Step Solution

1. Step 1: Write the proportion equation
   113,670.83 : 156,874.69 = 62,688.22 : x
2. Step 2: Convert to fraction form
   113,670.83/156,874.69 = 62,688.22/x
3. Step 3: Cross multiply
   113,670.83x = 156,874.69 × 62,688.22
4. Step 4: Simplify right side
   113,670.83x = 9,834,194,765.33
5. Step 5: Solve for x
   x = 9,834,194,765.33/113,670.83
6. Step 6: Final answer
   x = 86,514.67