Finding the Fourth Proportional to 42,139.14, 58,155.72 and 23,279.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,139.14 : 58,155.72 = 23,279.92 : x
2. Step 2: Convert to fraction form
   42,139.14/58,155.72 = 23,279.92/x
3. Step 3: Cross multiply
   42,139.14x = 58,155.72 × 23,279.92
4. Step 4: Simplify right side
   42,139.14x = 1,353,860,509.14
5. Step 5: Solve for x
   x = 1,353,860,509.14/42,139.14
6. Step 6: Final answer
   x = 32,128.34