Finding the Fourth Proportional to 10,068.55, 15,107.32 and 5,135.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,068.55 : 15,107.32 = 5,135.59 : x
2. Step 2: Convert to fraction form
   10,068.55/15,107.32 = 5,135.59/x
3. Step 3: Cross multiply
   10,068.55x = 15,107.32 × 5,135.59
4. Step 4: Simplify right side
   10,068.55x = 77,584,925.98
5. Step 5: Solve for x
   x = 77,584,925.98/10,068.55
6. Step 6: Final answer
   x = 7,705.67