Finding the Fourth Proportional to 60,725.64, 91,073.76 and 31,128.24

Step by Step Solution

1. Step 1: Write the proportion equation
   60,725.64 : 91,073.76 = 31,128.24 : x
2. Step 2: Convert to fraction form
   60,725.64/91,073.76 = 31,128.24/x
3. Step 3: Cross multiply
   60,725.64x = 91,073.76 × 31,128.24
4. Step 4: Simplify right side
   60,725.64x = 2,834,965,858.98
5. Step 5: Solve for x
   x = 2,834,965,858.98/60,725.64
6. Step 6: Final answer
   x = 46,684.82