Finding the Fourth Proportional to 71,499.34, 107,139.60 and 38,224.12

Step by Step Solution

1. Step 1: Write the proportion equation
   71,499.34 : 107,139.60 = 38,224.12 : x
2. Step 2: Convert to fraction form
   71,499.34/107,139.60 = 38,224.12/x
3. Step 3: Cross multiply
   71,499.34x = 107,139.60 × 38,224.12
4. Step 4: Simplify right side
   71,499.34x = 4,095,316,927.15
5. Step 5: Solve for x
   x = 4,095,316,927.15/71,499.34
6. Step 6: Final answer
   x = 57,277.69