Finding the Fourth Proportional to 298,405, 447,689.51 and 88,042.94

Step by Step Solution

1. Step 1: Write the proportion equation
   298,405 : 447,689.51 = 88,042.94 : x
2. Step 2: Convert to fraction form
   298,405/447,689.51 = 88,042.94/x
3. Step 3: Cross multiply
   298,405x = 447,689.51 × 88,042.94
4. Step 4: Simplify right side
   298,405x = 39,415,900,667.56
5. Step 5: Solve for x
   x = 39,415,900,667.56/298,405
6. Step 6: Final answer
   x = 132,088.61