Finding the Fourth Proportional to 42,526.38, 63,765.27 and 12,935.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,526.38 : 63,765.27 = 12,935.46 : x
2. Step 2: Convert to fraction form
   42,526.38/63,765.27 = 12,935.46/x
3. Step 3: Cross multiply
   42,526.38x = 63,765.27 × 12,935.46
4. Step 4: Simplify right side
   42,526.38x = 824,833,099.47
5. Step 5: Solve for x
   x = 824,833,099.47/42,526.38
6. Step 6: Final answer
   x = 19,395.80