Finding the Fourth Proportional to 105,885.33, 146,124.12 and 58,138.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,885.33 : 146,124.12 = 58,138.88 : x
2. Step 2: Convert to fraction form
   105,885.33/146,124.12 = 58,138.88/x
3. Step 3: Cross multiply
   105,885.33x = 146,124.12 × 58,138.88
4. Step 4: Simplify right side
   105,885.33x = 8,495,491,947.17
5. Step 5: Solve for x
   x = 8,495,491,947.17/105,885.33
6. Step 6: Final answer
   x = 80,232.95