Finding the Fourth Proportional to 106,148.28, 146,484.87 and 58,404.70

Step by Step Solution

1. Step 1: Write the proportion equation
   106,148.28 : 146,484.87 = 58,404.70 : x
2. Step 2: Convert to fraction form
   106,148.28/146,484.87 = 58,404.70/x
3. Step 3: Cross multiply
   106,148.28x = 146,484.87 × 58,404.70
4. Step 4: Simplify right side
   106,148.28x = 8,555,404,886.89
5. Step 5: Solve for x
   x = 8,555,404,886.89/106,148.28
6. Step 6: Final answer
   x = 80,598.62