Finding the Fourth Proportional to 35,454.88, 53,191.56 and 13,270

Step by Step Solution

1. Step 1: Write the proportion equation
   35,454.88 : 53,191.56 = 13,270 : x
2. Step 2: Convert to fraction form
   35,454.88/53,191.56 = 13,270/x
3. Step 3: Cross multiply
   35,454.88x = 53,191.56 × 13,270
4. Step 4: Simplify right side
   35,454.88x = 705,852,001.20
5. Step 5: Solve for x
   x = 705,852,001.20/35,454.88
6. Step 6: Final answer
   x = 19,908.46