Finding the Fourth Proportional to 45,498.98, 68,186.18 and 28,870.70

Step by Step Solution

1. Step 1: Write the proportion equation
   45,498.98 : 68,186.18 = 28,870.70 : x
2. Step 2: Convert to fraction form
   45,498.98/68,186.18 = 28,870.70/x
3. Step 3: Cross multiply
   45,498.98x = 68,186.18 × 28,870.70
4. Step 4: Simplify right side
   45,498.98x = 1,968,582,478.17
5. Step 5: Solve for x
   x = 1,968,582,478.17/45,498.98
6. Step 6: Final answer
   x = 43,266.52