Finding the Fourth Proportional to 58,557.78, 80,809.76 and 31,700.28

Step by Step Solution

1. Step 1: Write the proportion equation
   58,557.78 : 80,809.76 = 31,700.28 : x
2. Step 2: Convert to fraction form
   58,557.78/80,809.76 = 31,700.28/x
3. Step 3: Cross multiply
   58,557.78x = 80,809.76 × 31,700.28
4. Step 4: Simplify right side
   58,557.78x = 2,561,692,311.86
5. Step 5: Solve for x
   x = 2,561,692,311.86/58,557.78
6. Step 6: Final answer
   x = 43,746.41