Finding the Fourth Proportional to 81,053.45, 111,853.34 and 47,070.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,053.45 : 111,853.34 = 47,070.30 : x
2. Step 2: Convert to fraction form
   81,053.45/111,853.34 = 47,070.30/x
3. Step 3: Cross multiply
   81,053.45x = 111,853.34 × 47,070.30
4. Step 4: Simplify right side
   81,053.45x = 5,264,969,666.01
5. Step 5: Solve for x
   x = 5,264,969,666.01/81,053.45
6. Step 6: Final answer
   x = 64,956.76