Finding the Fourth Proportional to 100,947.82, 139,308.00 and 58,530.96

Step by Step Solution

1. Step 1: Write the proportion equation
   100,947.82 : 139,308.00 = 58,530.96 : x
2. Step 2: Convert to fraction form
   100,947.82/139,308.00 = 58,530.96/x
3. Step 3: Cross multiply
   100,947.82x = 139,308.00 × 58,530.96
4. Step 4: Simplify right side
   100,947.82x = 8,153,829,986.49
5. Step 5: Solve for x
   x = 8,153,829,986.49/100,947.82
6. Step 6: Final answer
   x = 80,772.72