Finding the Fourth Proportional to 122,491.86, 169,034.49 and 74,824.98

Step by Step Solution

1. Step 1: Write the proportion equation
   122,491.86 : 169,034.49 = 74,824.98 : x
2. Step 2: Convert to fraction form
   122,491.86/169,034.49 = 74,824.98/x
3. Step 3: Cross multiply
   122,491.86x = 169,034.49 × 74,824.98
4. Step 4: Simplify right side
   122,491.86x = 12,648,002,333.56
5. Step 5: Solve for x
   x = 12,648,002,333.56/122,491.86
6. Step 6: Final answer
   x = 103,255.86