Finding the Fourth Proportional to 70,526.08, 105,786.24 and 28,972

Step by Step Solution

1. Step 1: Write the proportion equation
   70,526.08 : 105,786.24 = 28,972 : x
2. Step 2: Convert to fraction form
   70,526.08/105,786.24 = 28,972/x
3. Step 3: Cross multiply
   70,526.08x = 105,786.24 × 28,972
4. Step 4: Simplify right side
   70,526.08x = 3,064,838,945.28
5. Step 5: Solve for x
   x = 3,064,838,945.28/70,526.08
6. Step 6: Final answer
   x = 43,456.82