Finding the Fourth Proportional to 58,642.05, 80,925.71 and 31,784.28

Step by Step Solution

1. Step 1: Write the proportion equation
   58,642.05 : 80,925.71 = 31,784.28 : x
2. Step 2: Convert to fraction form
   58,642.05/80,925.71 = 31,784.28/x
3. Step 3: Cross multiply
   58,642.05x = 80,925.71 × 31,784.28
4. Step 4: Simplify right side
   58,642.05x = 2,572,165,425.84
5. Step 5: Solve for x
   x = 2,572,165,425.84/58,642.05
6. Step 6: Final answer
   x = 43,862.13