Finding the Fourth Proportional to 78,763.84, 108,693.12 and 42,953.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,763.84 : 108,693.12 = 42,953.02 : x
2. Step 2: Convert to fraction form
   78,763.84/108,693.12 = 42,953.02/x
3. Step 3: Cross multiply
   78,763.84x = 108,693.12 × 42,953.02
4. Step 4: Simplify right side
   78,763.84x = 4,668,697,757.22
5. Step 5: Solve for x
   x = 4,668,697,757.22/78,763.84
6. Step 6: Final answer
   x = 59,274.63