Finding the Fourth Proportional to 70,019.96, 104,998.34 and 20,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,019.96 : 104,998.34 = 20,088.72 : x
2. Step 2: Convert to fraction form
   70,019.96/104,998.34 = 20,088.72/x
3. Step 3: Cross multiply
   70,019.96x = 104,998.34 × 20,088.72
4. Step 4: Simplify right side
   70,019.96x = 2,109,282,252.72
5. Step 5: Solve for x
   x = 2,109,282,252.72/70,019.96
6. Step 6: Final answer
   x = 30,124.01