Finding the Fourth Proportional to 78,113.28, 107,796.42 and 42,303.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,113.28 : 107,796.42 = 42,303.35 : x
2. Step 2: Convert to fraction form
   78,113.28/107,796.42 = 42,303.35/x
3. Step 3: Cross multiply
   78,113.28x = 107,796.42 × 42,303.35
4. Step 4: Simplify right side
   78,113.28x = 4,560,149,145.02
5. Step 5: Solve for x
   x = 4,560,149,145.02/78,113.28
6. Step 6: Final answer
   x = 58,378.67