Finding the Fourth Proportional to 78,605.46, 108,477.80 and 42,796.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,605.46 : 108,477.80 = 42,796.08 : x
2. Step 2: Convert to fraction form
   78,605.46/108,477.80 = 42,796.08/x
3. Step 3: Cross multiply
   78,605.46x = 108,477.80 × 42,796.08
4. Step 4: Simplify right side
   78,605.46x = 4,642,424,607.02
5. Step 5: Solve for x
   x = 4,642,424,607.02/78,605.46
6. Step 6: Final answer
   x = 59,059.82