Finding the Fourth Proportional to 56,443.50, 77,894.73 and 31,293

Step by Step Solution

1. Step 1: Write the proportion equation
   56,443.50 : 77,894.73 = 31,293 : x
2. Step 2: Convert to fraction form
   56,443.50/77,894.73 = 31,293/x
3. Step 3: Cross multiply
   56,443.50x = 77,894.73 × 31,293
4. Step 4: Simplify right side
   56,443.50x = 2,437,559,785.89
5. Step 5: Solve for x
   x = 2,437,559,785.89/56,443.50
6. Step 6: Final answer
   x = 43,185.84