Finding the Fourth Proportional to 42,580.16, 58,796.16 and 31,312.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,580.16 : 58,796.16 = 31,312.64 : x
2. Step 2: Convert to fraction form
   42,580.16/58,796.16 = 31,312.64/x
3. Step 3: Cross multiply
   42,580.16x = 58,796.16 × 31,312.64
4. Step 4: Simplify right side
   42,580.16x = 1,841,062,991.46
5. Step 5: Solve for x
   x = 1,841,062,991.46/42,580.16
6. Step 6: Final answer
   x = 43,237.58