Finding the Fourth Proportional to 131,580.98, 181,582.84 and 72,646.34

Step by Step Solution

1. Step 1: Write the proportion equation
   131,580.98 : 181,582.84 = 72,646.34 : x
2. Step 2: Convert to fraction form
   131,580.98/181,582.84 = 72,646.34/x
3. Step 3: Cross multiply
   131,580.98x = 181,582.84 × 72,646.34
4. Step 4: Simplify right side
   131,580.98x = 13,191,329,005.15
5. Step 5: Solve for x
   x = 13,191,329,005.15/131,580.98
6. Step 6: Final answer
   x = 100,252.55