Finding the Fourth Proportional to 78,045.46, 107,702.73 and 42,235.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,045.46 : 107,702.73 = 42,235.47 : x
2. Step 2: Convert to fraction form
   78,045.46/107,702.73 = 42,235.47/x
3. Step 3: Cross multiply
   78,045.46x = 107,702.73 × 42,235.47
4. Step 4: Simplify right side
   78,045.46x = 4,548,875,421.83
5. Step 5: Solve for x
   x = 4,548,875,421.83/78,045.46
6. Step 6: Final answer
   x = 58,284.95