Finding the Fourth Proportional to 13,312.69, 19,973.72 and 5,916.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,312.69 : 19,973.72 = 5,916.47 : x
2. Step 2: Convert to fraction form
   13,312.69/19,973.72 = 5,916.47/x
3. Step 3: Cross multiply
   13,312.69x = 19,973.72 × 5,916.47
4. Step 4: Simplify right side
   13,312.69x = 118,173,830.09
5. Step 5: Solve for x
   x = 118,173,830.09/13,312.69
6. Step 6: Final answer
   x = 8,876.78