Finding the Fourth Proportional to 83,181.82, 124,654.78 and 64,374.31

Step by Step Solution

1. Step 1: Write the proportion equation
   83,181.82 : 124,654.78 = 64,374.31 : x
2. Step 2: Convert to fraction form
   83,181.82/124,654.78 = 64,374.31/x
3. Step 3: Cross multiply
   83,181.82x = 124,654.78 × 64,374.31
4. Step 4: Simplify right side
   83,181.82x = 8,024,565,450.70
5. Step 5: Solve for x
   x = 8,024,565,450.70/83,181.82
6. Step 6: Final answer
   x = 96,470.18