Finding the Fourth Proportional to 139,165.68, 208,774.56 and 63,269.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,165.68 : 208,774.56 = 63,269.76 : x
2. Step 2: Convert to fraction form
   139,165.68/208,774.56 = 63,269.76/x
3. Step 3: Cross multiply
   139,165.68x = 208,774.56 × 63,269.76
4. Step 4: Simplify right side
   139,165.68x = 13,209,116,305.31
5. Step 5: Solve for x
   x = 13,209,116,305.31/139,165.68
6. Step 6: Final answer
   x = 94,916.48