Finding the Fourth Proportional to 42,128.76, 58,138.08 and 23,267.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,128.76 : 58,138.08 = 23,267.10 : x
2. Step 2: Convert to fraction form
   42,128.76/58,138.08 = 23,267.10/x
3. Step 3: Cross multiply
   42,128.76x = 58,138.08 × 23,267.10
4. Step 4: Simplify right side
   42,128.76x = 1,352,704,521.17
5. Step 5: Solve for x
   x = 1,352,704,521.17/42,128.76
6. Step 6: Final answer
   x = 32,108.81