Finding the Fourth Proportional to 13,830.98, 19,086.71 and 7,543.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,830.98 : 19,086.71 = 7,543.35 : x
2. Step 2: Convert to fraction form
   13,830.98/19,086.71 = 7,543.35/x
3. Step 3: Cross multiply
   13,830.98x = 19,086.71 × 7,543.35
4. Step 4: Simplify right side
   13,830.98x = 143,977,696.16
5. Step 5: Solve for x
   x = 143,977,696.16/13,830.98
6. Step 6: Final answer
   x = 10,409.80