Finding the Fourth Proportional to 76,603.28, 105,710.99 and 42,611.04

Step by Step Solution

1. Step 1: Write the proportion equation
   76,603.28 : 105,710.99 = 42,611.04 : x
2. Step 2: Convert to fraction form
   76,603.28/105,710.99 = 42,611.04/x
3. Step 3: Cross multiply
   76,603.28x = 105,710.99 × 42,611.04
4. Step 4: Simplify right side
   76,603.28x = 4,504,455,010.27
5. Step 5: Solve for x
   x = 4,504,455,010.27/76,603.28
6. Step 6: Final answer
   x = 58,802.38