Finding the Fourth Proportional to 106,064.72, 146,371.74 and 58,320.74

Step by Step Solution

1. Step 1: Write the proportion equation
   106,064.72 : 146,371.74 = 58,320.74 : x
2. Step 2: Convert to fraction form
   106,064.72/146,371.74 = 58,320.74/x
3. Step 3: Cross multiply
   106,064.72x = 146,371.74 × 58,320.74
4. Step 4: Simplify right side
   106,064.72x = 8,536,508,191.89
5. Step 5: Solve for x
   x = 8,536,508,191.89/106,064.72
6. Step 6: Final answer
   x = 80,483.96