Finding the Fourth Proportional to 8,870.18, 12,237.39 and 5,091.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.18 : 12,237.39 = 5,091.98 : x
2. Step 2: Convert to fraction form
   8,870.18/12,237.39 = 5,091.98/x
3. Step 3: Cross multiply
   8,870.18x = 12,237.39 × 5,091.98
4. Step 4: Simplify right side
   8,870.18x = 62,312,483.95
5. Step 5: Solve for x
   x = 62,312,483.95/8,870.18
6. Step 6: Final answer
   x = 7,024.94