Finding the Fourth Proportional to 42,538.42, 63,802.74 and 11,376.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,538.42 : 63,802.74 = 11,376.10 : x
2. Step 2: Convert to fraction form
   42,538.42/63,802.74 = 11,376.10/x
3. Step 3: Cross multiply
   42,538.42x = 63,802.74 × 11,376.10
4. Step 4: Simplify right side
   42,538.42x = 725,826,031.50
5. Step 5: Solve for x
   x = 725,826,031.50/42,538.42
6. Step 6: Final answer
   x = 17,062.84