Finding the Fourth Proportional to 78,764.12, 108,693.33 and 42,954.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,764.12 : 108,693.33 = 42,954.05 : x
2. Step 2: Convert to fraction form
   78,764.12/108,693.33 = 42,954.05/x
3. Step 3: Cross multiply
   78,764.12x = 108,693.33 × 42,954.05
4. Step 4: Simplify right side
   78,764.12x = 4,668,818,411.95
5. Step 5: Solve for x
   x = 4,668,818,411.95/78,764.12
6. Step 6: Final answer
   x = 59,275.95