Finding the Fourth Proportional to 76,538.94, 105,623.67 and 42,546.36

Step by Step Solution

1. Step 1: Write the proportion equation
   76,538.94 : 105,623.67 = 42,546.36 : x
2. Step 2: Convert to fraction form
   76,538.94/105,623.67 = 42,546.36/x
3. Step 3: Cross multiply
   76,538.94x = 105,623.67 × 42,546.36
4. Step 4: Simplify right side
   76,538.94x = 4,493,902,688.34
5. Step 5: Solve for x
   x = 4,493,902,688.34/76,538.94
6. Step 6: Final answer
   x = 58,713.94