Finding the Fourth Proportional to 78,605.75, 108,475.75 and 42,796.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,605.75 : 108,475.75 = 42,796.01 : x
2. Step 2: Convert to fraction form
   78,605.75/108,475.75 = 42,796.01/x
3. Step 3: Cross multiply
   78,605.75x = 108,475.75 × 42,796.01
4. Step 4: Simplify right side
   78,605.75x = 4,642,329,281.76
5. Step 5: Solve for x
   x = 4,642,329,281.76/78,605.75
6. Step 6: Final answer
   x = 59,058.39