Finding the Fourth Proportional to 76,541.96, 105,629.67 and 42,549.15

Step by Step Solution

1. Step 1: Write the proportion equation
   76,541.96 : 105,629.67 = 42,549.15 : x
2. Step 2: Convert to fraction form
   76,541.96/105,629.67 = 42,549.15/x
3. Step 3: Cross multiply
   76,541.96x = 105,629.67 × 42,549.15
4. Step 4: Simplify right side
   76,541.96x = 4,494,452,475.22
5. Step 5: Solve for x
   x = 4,494,452,475.22/76,541.96
6. Step 6: Final answer
   x = 58,718.80