Finding the Fourth Proportional to 35,385.95, 53,062.56 and 13,193.39

Step by Step Solution

1. Step 1: Write the proportion equation
   35,385.95 : 53,062.56 = 13,193.39 : x
2. Step 2: Convert to fraction form
   35,385.95/53,062.56 = 13,193.39/x
3. Step 3: Cross multiply
   35,385.95x = 53,062.56 × 13,193.39
4. Step 4: Simplify right side
   35,385.95x = 700,074,783.17
5. Step 5: Solve for x
   x = 700,074,783.17/35,385.95
6. Step 6: Final answer
   x = 19,783.98