Finding the Fourth Proportional to 72,340.56, 99,856.17 and 58,888.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,340.56 : 99,856.17 = 58,888.46 : x
2. Step 2: Convert to fraction form
   72,340.56/99,856.17 = 58,888.46/x
3. Step 3: Cross multiply
   72,340.56x = 99,856.17 × 58,888.46
4. Step 4: Simplify right side
   72,340.56x = 5,880,375,573.52
5. Step 5: Solve for x
   x = 5,880,375,573.52/72,340.56
6. Step 6: Final answer
   x = 81,287.39