Finding the Fourth Proportional to 76,250.25, 105,225.39 and 42,716.25

Step by Step Solution

1. Step 1: Write the proportion equation
   76,250.25 : 105,225.39 = 42,716.25 : x
2. Step 2: Convert to fraction form
   76,250.25/105,225.39 = 42,716.25/x
3. Step 3: Cross multiply
   76,250.25x = 105,225.39 × 42,716.25
4. Step 4: Simplify right side
   76,250.25x = 4,494,834,065.59
5. Step 5: Solve for x
   x = 4,494,834,065.59/76,250.25
6. Step 6: Final answer
   x = 58,948.45