Finding the Fourth Proportional to 53,010.91, 79,521.83 and 15,570.83

Step by Step Solution

1. Step 1: Write the proportion equation
   53,010.91 : 79,521.83 = 15,570.83 : x
2. Step 2: Convert to fraction form
   53,010.91/79,521.83 = 15,570.83/x
3. Step 3: Cross multiply
   53,010.91x = 79,521.83 × 15,570.83
4. Step 4: Simplify right side
   53,010.91x = 1,238,221,031.77
5. Step 5: Solve for x
   x = 1,238,221,031.77/53,010.91
6. Step 6: Final answer
   x = 23,357.85