Finding the Fourth Proportional to 77,031.50, 115,553.82 and 21,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,031.50 : 115,553.82 = 21,627.50 : x
2. Step 2: Convert to fraction form
   77,031.50/115,553.82 = 21,627.50/x
3. Step 3: Cross multiply
   77,031.50x = 115,553.82 × 21,627.50
4. Step 4: Simplify right side
   77,031.50x = 2,499,140,242.05
5. Step 5: Solve for x
   x = 2,499,140,242.05/77,031.50
6. Step 6: Final answer
   x = 32,443.09