Finding the Fourth Proportional to 42,667.18, 64,001.16 and 16,365.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42,667.18 : 64,001.16 = 16,365.70 : x
2. Step 2: Convert to fraction form
   42,667.18/64,001.16 = 16,365.70/x
3. Step 3: Cross multiply
   42,667.18x = 64,001.16 × 16,365.70
4. Step 4: Simplify right side
   42,667.18x = 1,047,423,784.21
5. Step 5: Solve for x
   x = 1,047,423,784.21/42,667.18
6. Step 6: Final answer
   x = 24,548.70