Finding the Fourth Proportional to 101,930.06, 140,668.16 and 56,608.25

Step by Step Solution

1. Step 1: Write the proportion equation
   101,930.06 : 140,668.16 = 56,608.25 : x
2. Step 2: Convert to fraction form
   101,930.06/140,668.16 = 56,608.25/x
3. Step 3: Cross multiply
   101,930.06x = 140,668.16 × 56,608.25
4. Step 4: Simplify right side
   101,930.06x = 7,962,978,368.32
5. Step 5: Solve for x
   x = 7,962,978,368.32/101,930.06
6. Step 6: Final answer
   x = 78,121.98