Finding the Fourth Proportional to 13,877.51, 19,152.98 and 7,909.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,877.51 : 19,152.98 = 7,909.76 : x
2. Step 2: Convert to fraction form
   13,877.51/19,152.98 = 7,909.76/x
3. Step 3: Cross multiply
   13,877.51x = 19,152.98 × 7,909.76
4. Step 4: Simplify right side
   13,877.51x = 151,495,339.77
5. Step 5: Solve for x
   x = 151,495,339.77/13,877.51
6. Step 6: Final answer
   x = 10,916.61