Finding the Fourth Proportional to 42,655.08, 58,832.28 and 31,321.02

Step by Step Solution

1. Step 1: Write the proportion equation
   42,655.08 : 58,832.28 = 31,321.02 : x
2. Step 2: Convert to fraction form
   42,655.08/58,832.28 = 31,321.02/x
3. Step 3: Cross multiply
   42,655.08x = 58,832.28 × 31,321.02
4. Step 4: Simplify right side
   42,655.08x = 1,842,687,018.53
5. Step 5: Solve for x
   x = 1,842,687,018.53/42,655.08
6. Step 6: Final answer
   x = 43,199.71