Finding the Fourth Proportional to 112,923.86, 169,089.86 and 79,462.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,923.86 : 169,089.86 = 79,462.76 : x
2. Step 2: Convert to fraction form
   112,923.86/169,089.86 = 79,462.76/x
3. Step 3: Cross multiply
   112,923.86x = 169,089.86 × 79,462.76
4. Step 4: Simplify right side
   112,923.86x = 13,436,346,316.82
5. Step 5: Solve for x
   x = 13,436,346,316.82/112,923.86
6. Step 6: Final answer
   x = 118,985.90