Finding the Fourth Proportional to 82,507.12, 123,823.36 and 60,377.60

Step by Step Solution

1. Step 1: Write the proportion equation
   82,507.12 : 123,823.36 = 60,377.60 : x
2. Step 2: Convert to fraction form
   82,507.12/123,823.36 = 60,377.60/x
3. Step 3: Cross multiply
   82,507.12x = 123,823.36 × 60,377.60
4. Step 4: Simplify right side
   82,507.12x = 7,476,157,685.77
5. Step 5: Solve for x
   x = 7,476,157,685.77/82,507.12
6. Step 6: Final answer
   x = 90,612.28