Finding the Fourth Proportional to 112,978.18, 169,471.68 and 34,092.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,978.18 : 169,471.68 = 34,092.42 : x
2. Step 2: Convert to fraction form
   112,978.18/169,471.68 = 34,092.42/x
3. Step 3: Cross multiply
   112,978.18x = 169,471.68 × 34,092.42
4. Step 4: Simplify right side
   112,978.18x = 5,777,699,692.67
5. Step 5: Solve for x
   x = 5,777,699,692.67/112,978.18
6. Step 6: Final answer
   x = 51,139.96