Finding the Fourth Proportional to 42,009.98, 63,019.83 and 13,932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,009.98 : 63,019.83 = 13,932.50 : x
2. Step 2: Convert to fraction form
   42,009.98/63,019.83 = 13,932.50/x
3. Step 3: Cross multiply
   42,009.98x = 63,019.83 × 13,932.50
4. Step 4: Simplify right side
   42,009.98x = 878,023,781.48
5. Step 5: Solve for x
   x = 878,023,781.48/42,009.98
6. Step 6: Final answer
   x = 20,900.36