Finding the Fourth Proportional to 71,419.39, 107,094.45 and 21,490.18

Step by Step Solution

1. Step 1: Write the proportion equation
   71,419.39 : 107,094.45 = 21,490.18 : x
2. Step 2: Convert to fraction form
   71,419.39/107,094.45 = 21,490.18/x
3. Step 3: Cross multiply
   71,419.39x = 107,094.45 × 21,490.18
4. Step 4: Simplify right side
   71,419.39x = 2,301,478,820.35
5. Step 5: Solve for x
   x = 2,301,478,820.35/71,419.39
6. Step 6: Final answer
   x = 32,224.85