Finding the Fourth Proportional to 123,470.03, 170,385.16 and 72,481.95

Step by Step Solution

1. Step 1: Write the proportion equation
   123,470.03 : 170,385.16 = 72,481.95 : x
2. Step 2: Convert to fraction form
   123,470.03/170,385.16 = 72,481.95/x
3. Step 3: Cross multiply
   123,470.03x = 170,385.16 × 72,481.95
4. Step 4: Simplify right side
   123,470.03x = 12,349,848,647.86
5. Step 5: Solve for x
   x = 12,349,848,647.86/123,470.03
6. Step 6: Final answer
   x = 100,023.05