Finding the Fourth Proportional to 42,080.21, 58,091.73 and 26,169.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,080.21 : 58,091.73 = 26,169.78 : x
2. Step 2: Convert to fraction form
   42,080.21/58,091.73 = 26,169.78/x
3. Step 3: Cross multiply
   42,080.21x = 58,091.73 × 26,169.78
4. Step 4: Simplify right side
   42,080.21x = 1,520,248,060.83
5. Step 5: Solve for x
   x = 1,520,248,060.83/42,080.21
6. Step 6: Final answer
   x = 36,127.39