Finding the Fourth Proportional to 57,006.84, 78,667.82 and 31,856.34

Step by Step Solution

1. Step 1: Write the proportion equation
   57,006.84 : 78,667.82 = 31,856.34 : x
2. Step 2: Convert to fraction form
   57,006.84/78,667.82 = 31,856.34/x
3. Step 3: Cross multiply
   57,006.84x = 78,667.82 × 31,856.34
4. Step 4: Simplify right side
   57,006.84x = 2,506,068,820.98
5. Step 5: Solve for x
   x = 2,506,068,820.98/57,006.84
6. Step 6: Final answer
   x = 43,960.84