Finding the Fourth Proportional to 56,397, 77,830.41 and 31,246.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,397 : 77,830.41 = 31,246.50 : x
2. Step 2: Convert to fraction form
   56,397/77,830.41 = 31,246.50/x
3. Step 3: Cross multiply
   56,397x = 77,830.41 × 31,246.50
4. Step 4: Simplify right side
   56,397x = 2,431,927,906.07
5. Step 5: Solve for x
   x = 2,431,927,906.07/56,397
6. Step 6: Final answer
   x = 43,121.58