Finding the Fourth Proportional to 143,971.56, 216,019.71 and 77,333.94

Step by Step Solution

1. Step 1: Write the proportion equation
   143,971.56 : 216,019.71 = 77,333.94 : x
2. Step 2: Convert to fraction form
   143,971.56/216,019.71 = 77,333.94/x
3. Step 3: Cross multiply
   143,971.56x = 216,019.71 × 77,333.94
4. Step 4: Simplify right side
   143,971.56x = 16,705,655,291.96
5. Step 5: Solve for x
   x = 16,705,655,291.96/143,971.56
6. Step 6: Final answer
   x = 116,034.41