Finding the Fourth Proportional to 73,987.13, 111,017.15 and 45,899.98

Step by Step Solution

1. Step 1: Write the proportion equation
   73,987.13 : 111,017.15 = 45,899.98 : x
2. Step 2: Convert to fraction form
   73,987.13/111,017.15 = 45,899.98/x
3. Step 3: Cross multiply
   73,987.13x = 111,017.15 × 45,899.98
4. Step 4: Simplify right side
   73,987.13x = 5,095,684,180.07
5. Step 5: Solve for x
   x = 5,095,684,180.07/73,987.13
6. Step 6: Final answer
   x = 68,872.58