Finding the Fourth Proportional to 76,337.31, 105,340.25 and 42,344.45

Step by Step Solution

1. Step 1: Write the proportion equation
   76,337.31 : 105,340.25 = 42,344.45 : x
2. Step 2: Convert to fraction form
   76,337.31/105,340.25 = 42,344.45/x
3. Step 3: Cross multiply
   76,337.31x = 105,340.25 × 42,344.45
4. Step 4: Simplify right side
   76,337.31x = 4,460,574,210.69
5. Step 5: Solve for x
   x = 4,460,574,210.69/76,337.31
6. Step 6: Final answer
   x = 58,432.43