Finding the Fourth Proportional to 78,045.94, 107,703.38 and 42,235.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,045.94 : 107,703.38 = 42,235.94 : x
2. Step 2: Convert to fraction form
   78,045.94/107,703.38 = 42,235.94/x
3. Step 3: Cross multiply
   78,045.94x = 107,703.38 × 42,235.94
4. Step 4: Simplify right side
   78,045.94x = 4,548,953,495.48
5. Step 5: Solve for x
   x = 4,548,953,495.48/78,045.94
6. Step 6: Final answer
   x = 58,285.59