Finding the Fourth Proportional to 152,472.80, 210,412.56 and 83,561.96

Step by Step Solution

1. Step 1: Write the proportion equation
   152,472.80 : 210,412.56 = 83,561.96 : x
2. Step 2: Convert to fraction form
   152,472.80/210,412.56 = 83,561.96/x
3. Step 3: Cross multiply
   152,472.80x = 210,412.56 × 83,561.96
4. Step 4: Simplify right side
   152,472.80x = 17,582,485,922.22
5. Step 5: Solve for x
   x = 17,582,485,922.22/152,472.80
6. Step 6: Final answer
   x = 115,315.56