Finding the Fourth Proportional to 123,070.98, 169,894.66 and 72,076.62

Step by Step Solution

1. Step 1: Write the proportion equation
   123,070.98 : 169,894.66 = 72,076.62 : x
2. Step 2: Convert to fraction form
   123,070.98/169,894.66 = 72,076.62/x
3. Step 3: Cross multiply
   123,070.98x = 169,894.66 × 72,076.62
4. Step 4: Simplify right side
   123,070.98x = 12,245,433,440.91
5. Step 5: Solve for x
   x = 12,245,433,440.91/123,070.98
6. Step 6: Final answer
   x = 99,498.95