Finding the Fourth Proportional to 76,169.96, 105,113.27 and 42,177.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,169.96 : 105,113.27 = 42,177.72 : x
2. Step 2: Convert to fraction form
   76,169.96/105,113.27 = 42,177.72/x
3. Step 3: Cross multiply
   76,169.96x = 105,113.27 × 42,177.72
4. Step 4: Simplify right side
   76,169.96x = 4,433,438,070.34
5. Step 5: Solve for x
   x = 4,433,438,070.34/76,169.96
6. Step 6: Final answer
   x = 58,204.55