Finding the Fourth Proportional to 78,043.32, 107,699.67 and 42,233.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,043.32 : 107,699.67 = 42,233.31 : x
2. Step 2: Convert to fraction form
   78,043.32/107,699.67 = 42,233.31/x
3. Step 3: Cross multiply
   78,043.32x = 107,699.67 × 42,233.31
4. Step 4: Simplify right side
   78,043.32x = 4,548,513,550.01
5. Step 5: Solve for x
   x = 4,548,513,550.01/78,043.32
6. Step 6: Final answer
   x = 58,281.91