Finding the Fourth Proportional to 76,168.22, 105,109.25 and 42,174

Step by Step Solution

1. Step 1: Write the proportion equation
   76,168.22 : 105,109.25 = 42,174 : x
2. Step 2: Convert to fraction form
   76,168.22/105,109.25 = 42,174/x
3. Step 3: Cross multiply
   76,168.22x = 105,109.25 × 42,174
4. Step 4: Simplify right side
   76,168.22x = 4,432,877,298.63
5. Step 5: Solve for x
   x = 4,432,877,298.63/76,168.22
6. Step 6: Final answer
   x = 58,198.52