Finding the Fourth Proportional to 91,573.43, 137,114.06 and 58,112.33

Step by Step Solution

1. Step 1: Write the proportion equation
   91,573.43 : 137,114.06 = 58,112.33 : x
2. Step 2: Convert to fraction form
   91,573.43/137,114.06 = 58,112.33/x
3. Step 3: Cross multiply
   91,573.43x = 137,114.06 × 58,112.33
4. Step 4: Simplify right side
   91,573.43x = 7,968,017,211.80
5. Step 5: Solve for x
   x = 7,968,017,211.80/91,573.43
6. Step 6: Final answer
   x = 87,012.33