Finding the Fourth Proportional to 60,307.68, 91,008.78 and 58,297.71

Step by Step Solution

1. Step 1: Write the proportion equation
   60,307.68 : 91,008.78 = 58,297.71 : x
2. Step 2: Convert to fraction form
   60,307.68/91,008.78 = 58,297.71/x
3. Step 3: Cross multiply
   60,307.68x = 91,008.78 × 58,297.71
4. Step 4: Simplify right side
   60,307.68x = 5,305,603,463.89
5. Step 5: Solve for x
   x = 5,305,603,463.89/60,307.68
6. Step 6: Final answer
   x = 87,975.59