Finding the Fourth Proportional to 112,828.98, 169,199.72 and 60,209.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,828.98 : 169,199.72 = 60,209.76 : x
2. Step 2: Convert to fraction form
   112,828.98/169,199.72 = 60,209.76/x
3. Step 3: Cross multiply
   112,828.98x = 169,199.72 × 60,209.76
4. Step 4: Simplify right side
   112,828.98x = 10,187,474,533.27
5. Step 5: Solve for x
   x = 10,187,474,533.27/112,828.98
6. Step 6: Final answer
   x = 90,291.29