Finding the Fourth Proportional to 58,528.72, 80,769.90 and 31,671.40

Step by Step Solution

1. Step 1: Write the proportion equation
   58,528.72 : 80,769.90 = 31,671.40 : x
2. Step 2: Convert to fraction form
   58,528.72/80,769.90 = 31,671.40/x
3. Step 3: Cross multiply
   58,528.72x = 80,769.90 × 31,671.40
4. Step 4: Simplify right side
   58,528.72x = 2,558,095,810.86
5. Step 5: Solve for x
   x = 2,558,095,810.86/58,528.72
6. Step 6: Final answer
   x = 43,706.68