Finding the Fourth Proportional to 78,057.33, 107,718.98 and 42,247.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,057.33 : 107,718.98 = 42,247.32 : x
2. Step 2: Convert to fraction form
   78,057.33/107,718.98 = 42,247.32/x
3. Step 3: Cross multiply
   78,057.33x = 107,718.98 × 42,247.32
4. Step 4: Simplify right side
   78,057.33x = 4,550,838,218.13
5. Step 5: Solve for x
   x = 4,550,838,218.13/78,057.33
6. Step 6: Final answer
   x = 58,301.23