Finding the Fourth Proportional to 12,773.61, 19,167.90 and 5,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,773.61 : 19,167.90 = 5,377.50 : x
2. Step 2: Convert to fraction form
   12,773.61/19,167.90 = 5,377.50/x
3. Step 3: Cross multiply
   12,773.61x = 19,167.90 × 5,377.50
4. Step 4: Simplify right side
   12,773.61x = 103,075,382.25
5. Step 5: Solve for x
   x = 103,075,382.25/12,773.61
6. Step 6: Final answer
   x = 8,069.40