Finding the Fourth Proportional to 76,534.73, 105,624.47 and 42,549.83

Step by Step Solution

1. Step 1: Write the proportion equation
   76,534.73 : 105,624.47 = 42,549.83 : x
2. Step 2: Convert to fraction form
   76,534.73/105,624.47 = 42,549.83/x
3. Step 3: Cross multiply
   76,534.73x = 105,624.47 × 42,549.83
4. Step 4: Simplify right side
   76,534.73x = 4,494,303,029.59
5. Step 5: Solve for x
   x = 4,494,303,029.59/76,534.73
6. Step 6: Final answer
   x = 58,722.40