Finding the Fourth Proportional to 42,624.16, 63,931.98 and 13,042.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,624.16 : 63,931.98 = 13,042.26 : x
2. Step 2: Convert to fraction form
   42,624.16/63,931.98 = 13,042.26/x
3. Step 3: Cross multiply
   42,624.16x = 63,931.98 × 13,042.26
4. Step 4: Simplify right side
   42,624.16x = 833,817,505.47
5. Step 5: Solve for x
   x = 833,817,505.47/42,624.16
6. Step 6: Final answer
   x = 19,562.09