Finding the Fourth Proportional to 76,314.24, 105,314.52 and 42,323.40

Step by Step Solution

1. Step 1: Write the proportion equation
   76,314.24 : 105,314.52 = 42,323.40 : x
2. Step 2: Convert to fraction form
   76,314.24/105,314.52 = 42,323.40/x
3. Step 3: Cross multiply
   76,314.24x = 105,314.52 × 42,323.40
4. Step 4: Simplify right side
   76,314.24x = 4,457,268,555.77
5. Step 5: Solve for x
   x = 4,457,268,555.77/76,314.24
6. Step 6: Final answer
   x = 58,406.77