Finding the Fourth Proportional to 106,123.99, 146,443.10 and 58,380.43

Step by Step Solution

1. Step 1: Write the proportion equation
   106,123.99 : 146,443.10 = 58,380.43 : x
2. Step 2: Convert to fraction form
   106,123.99/146,443.10 = 58,380.43/x
3. Step 3: Cross multiply
   106,123.99x = 146,443.10 × 58,380.43
4. Step 4: Simplify right side
   106,123.99x = 8,549,411,148.53
5. Step 5: Solve for x
   x = 8,549,411,148.53/106,123.99
6. Step 6: Final answer
   x = 80,560.59