Finding the Fourth Proportional to 73,666.72, 110,501.16 and 21,076.30

Step by Step Solution

1. Step 1: Write the proportion equation
   73,666.72 : 110,501.16 = 21,076.30 : x
2. Step 2: Convert to fraction form
   73,666.72/110,501.16 = 21,076.30/x
3. Step 3: Cross multiply
   73,666.72x = 110,501.16 × 21,076.30
4. Step 4: Simplify right side
   73,666.72x = 2,328,955,598.51
5. Step 5: Solve for x
   x = 2,328,955,598.51/73,666.72
6. Step 6: Final answer
   x = 31,614.76