Finding the Fourth Proportional to 82,261.61, 113,510.59 and 48,257.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,261.61 : 113,510.59 = 48,257.69 : x
2. Step 2: Convert to fraction form
   82,261.61/113,510.59 = 48,257.69/x
3. Step 3: Cross multiply
   82,261.61x = 113,510.59 × 48,257.69
4. Step 4: Simplify right side
   82,261.61x = 5,477,759,117.55
5. Step 5: Solve for x
   x = 5,477,759,117.55/82,261.61
6. Step 6: Final answer
   x = 66,589.49