Finding the Fourth Proportional to 142,254.07, 196,314.60 and 78,595.99

Step by Step Solution

1. Step 1: Write the proportion equation
   142,254.07 : 196,314.60 = 78,595.99 : x
2. Step 2: Convert to fraction form
   142,254.07/196,314.60 = 78,595.99/x
3. Step 3: Cross multiply
   142,254.07x = 196,314.60 × 78,595.99
4. Step 4: Simplify right side
   142,254.07x = 15,429,540,338.45
5. Step 5: Solve for x
   x = 15,429,540,338.45/142,254.07
6. Step 6: Final answer
   x = 108,464.67