Finding the Fourth Proportional to 143,972.16, 216,069.12 and 94,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,972.16 : 216,069.12 = 94,038.72 : x
2. Step 2: Convert to fraction form
   143,972.16/216,069.12 = 94,038.72/x
3. Step 3: Cross multiply
   143,972.16x = 216,069.12 × 94,038.72
4. Step 4: Simplify right side
   143,972.16x = 20,318,863,476.33
5. Step 5: Solve for x
   x = 20,318,863,476.33/143,972.16
6. Step 6: Final answer
   x = 141,130.50