Finding the Fourth Proportional to 42,127, 58,152.22 and 28,711.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,127 : 58,152.22 = 28,711.81 : x
2. Step 2: Convert to fraction form
   42,127/58,152.22 = 28,711.81/x
3. Step 3: Cross multiply
   42,127x = 58,152.22 × 28,711.81
4. Step 4: Simplify right side
   42,127x = 1,669,655,491.72
5. Step 5: Solve for x
   x = 1,669,655,491.72/42,127
6. Step 6: Final answer
   x = 39,633.86