Finding the Fourth Proportional to 82,023.74, 122,991.86 and 42,482.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,023.74 : 122,991.86 = 42,482.78 : x
2. Step 2: Convert to fraction form
   82,023.74/122,991.86 = 42,482.78/x
3. Step 3: Cross multiply
   82,023.74x = 122,991.86 × 42,482.78
4. Step 4: Simplify right side
   82,023.74x = 5,225,036,130.17
5. Step 5: Solve for x
   x = 5,225,036,130.17/82,023.74
6. Step 6: Final answer
   x = 63,701.51