Finding the Fourth Proportional to 106,699.06, 160,045.15 and 31,819.83

Step by Step Solution

1. Step 1: Write the proportion equation
   106,699.06 : 160,045.15 = 31,819.83 : x
2. Step 2: Convert to fraction form
   106,699.06/160,045.15 = 31,819.83/x
3. Step 3: Cross multiply
   106,699.06x = 160,045.15 × 31,819.83
4. Step 4: Simplify right side
   106,699.06x = 5,092,609,465.32
5. Step 5: Solve for x
   x = 5,092,609,465.32/106,699.06
6. Step 6: Final answer
   x = 47,728.72