Finding the Fourth Proportional to 78,010.27, 107,653.85 and 42,200.19

Step by Step Solution

1. Step 1: Write the proportion equation
   78,010.27 : 107,653.85 = 42,200.19 : x
2. Step 2: Convert to fraction form
   78,010.27/107,653.85 = 42,200.19/x
3. Step 3: Cross multiply
   78,010.27x = 107,653.85 × 42,200.19
4. Step 4: Simplify right side
   78,010.27x = 4,543,012,713.23
5. Step 5: Solve for x
   x = 4,543,012,713.23/78,010.27
6. Step 6: Final answer
   x = 58,236.09