Finding the Fourth Proportional to 78,180.12, 107,888.76 and 42,369.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,180.12 : 107,888.76 = 42,369.84 : x
2. Step 2: Convert to fraction form
   78,180.12/107,888.76 = 42,369.84/x
3. Step 3: Cross multiply
   78,180.12x = 107,888.76 × 42,369.84
4. Step 4: Simplify right side
   78,180.12x = 4,571,229,499.00
5. Step 5: Solve for x
   x = 4,571,229,499.00/78,180.12
6. Step 6: Final answer
   x = 58,470.48