Finding the Fourth Proportional to 124,499.07, 186,748.50 and 45,619.47

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499.07 : 186,748.50 = 45,619.47 : x
2. Step 2: Convert to fraction form
   124,499.07/186,748.50 = 45,619.47/x
3. Step 3: Cross multiply
   124,499.07x = 186,748.50 × 45,619.47
4. Step 4: Simplify right side
   124,499.07x = 8,519,367,593.30
5. Step 5: Solve for x
   x = 8,519,367,593.30/124,499.07
6. Step 6: Final answer
   x = 68,429.17