Finding the Fourth Proportional to 78,043.68, 107,700.28 and 42,233.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,043.68 : 107,700.28 = 42,233.69 : x
2. Step 2: Convert to fraction form
   78,043.68/107,700.28 = 42,233.69/x
3. Step 3: Cross multiply
   78,043.68x = 107,700.28 × 42,233.69
4. Step 4: Simplify right side
   78,043.68x = 4,548,580,238.43
5. Step 5: Solve for x
   x = 4,548,580,238.43/78,043.68
6. Step 6: Final answer
   x = 58,282.49