Finding the Fourth Proportional to 76,306.10, 105,300.46 and 42,314.04

Step by Step Solution

1. Step 1: Write the proportion equation
   76,306.10 : 105,300.46 = 42,314.04 : x
2. Step 2: Convert to fraction form
   76,306.10/105,300.46 = 42,314.04/x
3. Step 3: Cross multiply
   76,306.10x = 105,300.46 × 42,314.04
4. Step 4: Simplify right side
   76,306.10x = 4,455,687,876.46
5. Step 5: Solve for x
   x = 4,455,687,876.46/76,306.10
6. Step 6: Final answer
   x = 58,392.29