Finding the Fourth Proportional to 78,097.95, 107,774.98 and 42,287.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,097.95 : 107,774.98 = 42,287.96 : x
2. Step 2: Convert to fraction form
   78,097.95/107,774.98 = 42,287.96/x
3. Step 3: Cross multiply
   78,097.95x = 107,774.98 × 42,287.96
4. Step 4: Simplify right side
   78,097.95x = 4,557,584,206.96
5. Step 5: Solve for x
   x = 4,557,584,206.96/78,097.95
6. Step 6: Final answer
   x = 58,357.28