Finding the Fourth Proportional to 76,166.96, 105,109.13 and 42,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,166.96 : 105,109.13 = 42,174.72 : x
2. Step 2: Convert to fraction form
   76,166.96/105,109.13 = 42,174.72/x
3. Step 3: Cross multiply
   76,166.96x = 105,109.13 × 42,174.72
4. Step 4: Simplify right side
   76,166.96x = 4,432,947,758.98
5. Step 5: Solve for x
   x = 4,432,947,758.98/76,166.96
6. Step 6: Final answer
   x = 58,200.40