Finding the Fourth Proportional to 42,670.34, 63,998.76 and 14,590.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,670.34 : 63,998.76 = 14,590.34 : x
2. Step 2: Convert to fraction form
   42,670.34/63,998.76 = 14,590.34/x
3. Step 3: Cross multiply
   42,670.34x = 63,998.76 × 14,590.34
4. Step 4: Simplify right side
   42,670.34x = 933,763,667.98
5. Step 5: Solve for x
   x = 933,763,667.98/42,670.34
6. Step 6: Final answer
   x = 21,883.20