Finding the Fourth Proportional to 78,693.56, 108,595.68 and 42,883.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,693.56 : 108,595.68 = 42,883.88 : x
2. Step 2: Convert to fraction form
   78,693.56/108,595.68 = 42,883.88/x
3. Step 3: Cross multiply
   78,693.56x = 108,595.68 × 42,883.88
4. Step 4: Simplify right side
   78,693.56x = 4,657,004,109.64
5. Step 5: Solve for x
   x = 4,657,004,109.64/78,693.56
6. Step 6: Final answer
   x = 59,178.97