Finding the Fourth Proportional to 52,667.84, 72,666.96 and 31,439.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,667.84 : 72,666.96 = 31,439.36 : x
2. Step 2: Convert to fraction form
   52,667.84/72,666.96 = 31,439.36/x
3. Step 3: Cross multiply
   52,667.84x = 72,666.96 × 31,439.36
4. Step 4: Simplify right side
   52,667.84x = 2,284,602,352.21
5. Step 5: Solve for x
   x = 2,284,602,352.21/52,667.84
6. Step 6: Final answer
   x = 43,377.56