Finding the Fourth Proportional to 141,097.16, 194,718.78 and 77,438.42

Step by Step Solution

1. Step 1: Write the proportion equation
   141,097.16 : 194,718.78 = 77,438.42 : x
2. Step 2: Convert to fraction form
   141,097.16/194,718.78 = 77,438.42/x
3. Step 3: Cross multiply
   141,097.16x = 194,718.78 × 77,438.42
4. Step 4: Simplify right side
   141,097.16x = 15,078,714,667.53
5. Step 5: Solve for x
   x = 15,078,714,667.53/141,097.16
6. Step 6: Final answer
   x = 106,867.60