Finding the Fourth Proportional to 82,127.60, 123,153.08 and 42,674.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,127.60 : 123,153.08 = 42,674.12 : x
2. Step 2: Convert to fraction form
   82,127.60/123,153.08 = 42,674.12/x
3. Step 3: Cross multiply
   82,127.60x = 123,153.08 × 42,674.12
4. Step 4: Simplify right side
   82,127.60x = 5,255,449,314.29
5. Step 5: Solve for x
   x = 5,255,449,314.29/82,127.60
6. Step 6: Final answer
   x = 63,991.27