Finding the Fourth Proportional to 42,402.10, 63,561.30 and 23,691.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,402.10 : 63,561.30 = 23,691.10 : x
2. Step 2: Convert to fraction form
   42,402.10/63,561.30 = 23,691.10/x
3. Step 3: Cross multiply
   42,402.10x = 63,561.30 × 23,691.10
4. Step 4: Simplify right side
   42,402.10x = 1,505,837,114.43
5. Step 5: Solve for x
   x = 1,505,837,114.43/42,402.10
6. Step 6: Final answer
   x = 35,513.27