Finding the Fourth Proportional to 70,092, 105,155.28 and 20,844

Step by Step Solution

1. Step 1: Write the proportion equation
   70,092 : 105,155.28 = 20,844 : x
2. Step 2: Convert to fraction form
   70,092/105,155.28 = 20,844/x
3. Step 3: Cross multiply
   70,092x = 105,155.28 × 20,844
4. Step 4: Simplify right side
   70,092x = 2,191,856,656.32
5. Step 5: Solve for x
   x = 2,191,856,656.32/70,092
6. Step 6: Final answer
   x = 31,271.14