Finding the Fourth Proportional to 71,854.56, 99,129.49 and 42,776.98

Step by Step Solution

1. Step 1: Write the proportion equation
   71,854.56 : 99,129.49 = 42,776.98 : x
2. Step 2: Convert to fraction form
   71,854.56/99,129.49 = 42,776.98/x
3. Step 3: Cross multiply
   71,854.56x = 99,129.49 × 42,776.98
4. Step 4: Simplify right side
   71,854.56x = 4,240,459,856.37
5. Step 5: Solve for x
   x = 4,240,459,856.37/71,854.56
6. Step 6: Final answer
   x = 59,014.49