Finding the Fourth Proportional to 76,078.02, 104,990.76 and 42,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   76,078.02 : 104,990.76 = 42,085.92 : x
2. Step 2: Convert to fraction form
   76,078.02/104,990.76 = 42,085.92/x
3. Step 3: Cross multiply
   76,078.02x = 104,990.76 × 42,085.92
4. Step 4: Simplify right side
   76,078.02x = 4,418,633,393.34
5. Step 5: Solve for x
   x = 4,418,633,393.34/76,078.02
6. Step 6: Final answer
   x = 58,080.29