Finding the Fourth Proportional to 71,492.90, 107,253.32 and 21,577.05

Step by Step Solution

1. Step 1: Write the proportion equation
   71,492.90 : 107,253.32 = 21,577.05 : x
2. Step 2: Convert to fraction form
   71,492.90/107,253.32 = 21,577.05/x
3. Step 3: Cross multiply
   71,492.90x = 107,253.32 × 21,577.05
4. Step 4: Simplify right side
   71,492.90x = 2,314,210,140.42
5. Step 5: Solve for x
   x = 2,314,210,140.42/71,492.90
6. Step 6: Final answer
   x = 32,369.79