Finding the Fourth Proportional to 30,881.72, 42,594.27 and 19,553.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,881.72 : 42,594.27 = 19,553.06 : x
2. Step 2: Convert to fraction form
   30,881.72/42,594.27 = 19,553.06/x
3. Step 3: Cross multiply
   30,881.72x = 42,594.27 × 19,553.06
4. Step 4: Simplify right side
   30,881.72x = 832,848,316.97
5. Step 5: Solve for x
   x = 832,848,316.97/30,881.72
6. Step 6: Final answer
   x = 26,968.97