Finding the Fourth Proportional to 142,482.38, 196,608.67 and 78,811.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,482.38 : 196,608.67 = 78,811.52 : x
2. Step 2: Convert to fraction form
   142,482.38/196,608.67 = 78,811.52/x
3. Step 3: Cross multiply
   142,482.38x = 196,608.67 × 78,811.52
4. Step 4: Simplify right side
   142,482.38x = 15,495,026,947.81
5. Step 5: Solve for x
   x = 15,495,026,947.81/142,482.38
6. Step 6: Final answer
   x = 108,750.48