Finding the Fourth Proportional to 78,358.25, 108,131.36 and 42,547.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,358.25 : 108,131.36 = 42,547.46 : x
2. Step 2: Convert to fraction form
   78,358.25/108,131.36 = 42,547.46/x
3. Step 3: Cross multiply
   78,358.25x = 108,131.36 × 42,547.46
4. Step 4: Simplify right side
   78,358.25x = 4,600,713,960.95
5. Step 5: Solve for x
   x = 4,600,713,960.95/78,358.25
6. Step 6: Final answer
   x = 58,713.85