Finding the Fourth Proportional to 78,526.49, 108,363.42 and 42,716.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,526.49 : 108,363.42 = 42,716.48 : x
2. Step 2: Convert to fraction form
   78,526.49/108,363.42 = 42,716.48/x
3. Step 3: Cross multiply
   78,526.49x = 108,363.42 × 42,716.48
4. Step 4: Simplify right side
   78,526.49x = 4,628,903,321.34
5. Step 5: Solve for x
   x = 4,628,903,321.34/78,526.49
6. Step 6: Final answer
   x = 58,947.03