Finding the Fourth Proportional to 78,045.83, 107,703.51 and 42,235.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,045.83 : 107,703.51 = 42,235.83 : x
2. Step 2: Convert to fraction form
   78,045.83/107,703.51 = 42,235.83/x
3. Step 3: Cross multiply
   78,045.83x = 107,703.51 × 42,235.83
4. Step 4: Simplify right side
   78,045.83x = 4,548,947,138.76
5. Step 5: Solve for x
   x = 4,548,947,138.76/78,045.83
6. Step 6: Final answer
   x = 58,285.59