Finding the Fourth Proportional to 141,778.10, 212,317.01 and 105,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   141,778.10 : 212,317.01 = 105,667.98 : x
2. Step 2: Convert to fraction form
   141,778.10/212,317.01 = 105,667.98/x
3. Step 3: Cross multiply
   141,778.10x = 212,317.01 × 105,667.98
4. Step 4: Simplify right side
   141,778.10x = 22,435,109,038.00
5. Step 5: Solve for x
   x = 22,435,109,038.00/141,778.10
6. Step 6: Final answer
   x = 158,241.01