Finding the Fourth Proportional to 83,690.02, 115,491.86 and 45,449.27

Step by Step Solution

1. Step 1: Write the proportion equation
   83,690.02 : 115,491.86 = 45,449.27 : x
2. Step 2: Convert to fraction form
   83,690.02/115,491.86 = 45,449.27/x
3. Step 3: Cross multiply
   83,690.02x = 115,491.86 × 45,449.27
4. Step 4: Simplify right side
   83,690.02x = 5,249,020,526.77
5. Step 5: Solve for x
   x = 5,249,020,526.77/83,690.02
6. Step 6: Final answer
   x = 62,719.79