Finding the Fourth Proportional to 42,998.61, 64,493.05 and 14,913.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,998.61 : 64,493.05 = 14,913.48 : x
2. Step 2: Convert to fraction form
   42,998.61/64,493.05 = 14,913.48/x
3. Step 3: Cross multiply
   42,998.61x = 64,493.05 × 14,913.48
4. Step 4: Simplify right side
   42,998.61x = 961,815,811.31
5. Step 5: Solve for x
   x = 961,815,811.31/42,998.61
6. Step 6: Final answer
   x = 22,368.53