Finding the Fourth Proportional to 92,621.43, 138,820.59 and 42,633.09

Step by Step Solution

1. Step 1: Write the proportion equation
   92,621.43 : 138,820.59 = 42,633.09 : x
2. Step 2: Convert to fraction form
   92,621.43/138,820.59 = 42,633.09/x
3. Step 3: Cross multiply
   92,621.43x = 138,820.59 × 42,633.09
4. Step 4: Simplify right side
   92,621.43x = 5,918,350,707.32
5. Step 5: Solve for x
   x = 5,918,350,707.32/92,621.43
6. Step 6: Final answer
   x = 63,898.29