Finding the Fourth Proportional to 105,770.63, 158,506.77 and 58,407.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,770.63 : 158,506.77 = 58,407.05 : x
2. Step 2: Convert to fraction form
   105,770.63/158,506.77 = 58,407.05/x
3. Step 3: Cross multiply
   105,770.63x = 158,506.77 × 58,407.05
4. Step 4: Simplify right side
   105,770.63x = 9,257,912,840.73
5. Step 5: Solve for x
   x = 9,257,912,840.73/105,770.63
6. Step 6: Final answer
   x = 87,528.20