Finding the Fourth Proportional to 78,525.73, 108,364.39 and 42,715.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,525.73 : 108,364.39 = 42,715.99 : x
2. Step 2: Convert to fraction form
   78,525.73/108,364.39 = 42,715.99/x
3. Step 3: Cross multiply
   78,525.73x = 108,364.39 × 42,715.99
4. Step 4: Simplify right side
   78,525.73x = 4,628,892,199.60
5. Step 5: Solve for x
   x = 4,628,892,199.60/78,525.73
6. Step 6: Final answer
   x = 58,947.46