Finding the Fourth Proportional to 42,471.47, 63,706.91 and 10,881.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,471.47 : 63,706.91 = 10,881.47 : x
2. Step 2: Convert to fraction form
   42,471.47/63,706.91 = 10,881.47/x
3. Step 3: Cross multiply
   42,471.47x = 63,706.91 × 10,881.47
4. Step 4: Simplify right side
   42,471.47x = 693,224,457.02
5. Step 5: Solve for x
   x = 693,224,457.02/42,471.47
6. Step 6: Final answer
   x = 16,322.12