Finding the Fourth Proportional to 92,196.68, 138,404.38 and 77,587.52

Step by Step Solution

1. Step 1: Write the proportion equation
   92,196.68 : 138,404.38 = 77,587.52 : x
2. Step 2: Convert to fraction form
   92,196.68/138,404.38 = 77,587.52/x
3. Step 3: Cross multiply
   92,196.68x = 138,404.38 × 77,587.52
4. Step 4: Simplify right side
   92,196.68x = 10,738,452,601.34
5. Step 5: Solve for x
   x = 10,738,452,601.34/92,196.68
6. Step 6: Final answer
   x = 116,473.31