Finding the Fourth Proportional to 78,087.20, 107,748.72 and 47,444.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,087.20 : 107,748.72 = 47,444.32 : x
2. Step 2: Convert to fraction form
   78,087.20/107,748.72 = 47,444.32/x
3. Step 3: Cross multiply
   78,087.20x = 107,748.72 × 47,444.32
4. Step 4: Simplify right side
   78,087.20x = 5,112,064,751.27
5. Step 5: Solve for x
   x = 5,112,064,751.27/78,087.20
6. Step 6: Final answer
   x = 65,466.10