Finding the Fourth Proportional to 64,488.71, 88,994.42 and 36,194.40

Step by Step Solution

1. Step 1: Write the proportion equation
   64,488.71 : 88,994.42 = 36,194.40 : x
2. Step 2: Convert to fraction form
   64,488.71/88,994.42 = 36,194.40/x
3. Step 3: Cross multiply
   64,488.71x = 88,994.42 × 36,194.40
4. Step 4: Simplify right side
   64,488.71x = 3,221,099,725.73
5. Step 5: Solve for x
   x = 3,221,099,725.73/64,488.71
6. Step 6: Final answer
   x = 49,948.27