Finding the Fourth Proportional to 42,897.39, 64,354.70 and 14,818.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897.39 : 64,354.70 = 14,818.47 : x
2. Step 2: Convert to fraction form
   42,897.39/64,354.70 = 14,818.47/x
3. Step 3: Cross multiply
   42,897.39x = 64,354.70 × 14,818.47
4. Step 4: Simplify right side
   42,897.39x = 953,638,191.31
5. Step 5: Solve for x
   x = 953,638,191.31/42,897.39
6. Step 6: Final answer
   x = 22,230.68