Finding the Fourth Proportional to 106,002.72, 146,284.20 and 58,254.84

Step by Step Solution

1. Step 1: Write the proportion equation
   106,002.72 : 146,284.20 = 58,254.84 : x
2. Step 2: Convert to fraction form
   106,002.72/146,284.20 = 58,254.84/x
3. Step 3: Cross multiply
   106,002.72x = 146,284.20 × 58,254.84
4. Step 4: Simplify right side
   106,002.72x = 8,521,762,665.53
5. Step 5: Solve for x
   x = 8,521,762,665.53/106,002.72
6. Step 6: Final answer
   x = 80,391.92