Finding the Fourth Proportional to 31,131.84, 42,753.12 and 26,655.60

Step by Step Solution

1. Step 1: Write the proportion equation
   31,131.84 : 42,753.12 = 26,655.60 : x
2. Step 2: Convert to fraction form
   31,131.84/42,753.12 = 26,655.60/x
3. Step 3: Cross multiply
   31,131.84x = 42,753.12 × 26,655.60
4. Step 4: Simplify right side
   31,131.84x = 1,139,610,065.47
5. Step 5: Solve for x
   x = 1,139,610,065.47/31,131.84
6. Step 6: Final answer
   x = 36,605.93