Finding the Fourth Proportional to 42,320.20, 58,403.86 and 23,457.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,320.20 : 58,403.86 = 23,457.76 : x
2. Step 2: Convert to fraction form
   42,320.20/58,403.86 = 23,457.76/x
3. Step 3: Cross multiply
   42,320.20x = 58,403.86 × 23,457.76
4. Step 4: Simplify right side
   42,320.20x = 1,370,023,730.95
5. Step 5: Solve for x
   x = 1,370,023,730.95/42,320.20
6. Step 6: Final answer
   x = 32,372.81