Finding the Fourth Proportional to 50,070.90, 69,097.90 and 31,208

Step by Step Solution

1. Step 1: Write the proportion equation
   50,070.90 : 69,097.90 = 31,208 : x
2. Step 2: Convert to fraction form
   50,070.90/69,097.90 = 31,208/x
3. Step 3: Cross multiply
   50,070.90x = 69,097.90 × 31,208
4. Step 4: Simplify right side
   50,070.90x = 2,156,407,263.20
5. Step 5: Solve for x
   x = 2,156,407,263.20/50,070.90
6. Step 6: Final answer
   x = 43,067.08