Finding the Fourth Proportional to 76,258.90, 105,237.29 and 42,269.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,258.90 : 105,237.29 = 42,269.56 : x
2. Step 2: Convert to fraction form
   76,258.90/105,237.29 = 42,269.56/x
3. Step 3: Cross multiply
   76,258.90x = 105,237.29 × 42,269.56
4. Step 4: Simplify right side
   76,258.90x = 4,448,333,943.89
5. Step 5: Solve for x
   x = 4,448,333,943.89/76,258.90
6. Step 6: Final answer
   x = 58,332.00