Finding the Fourth Proportional to 93,468.87, 139,530.06 and 86,825.93

Step by Step Solution

1. Step 1: Write the proportion equation
   93,468.87 : 139,530.06 = 86,825.93 : x
2. Step 2: Convert to fraction form
   93,468.87/139,530.06 = 86,825.93/x
3. Step 3: Cross multiply
   93,468.87x = 139,530.06 × 86,825.93
4. Step 4: Simplify right side
   93,468.87x = 12,114,826,524.81
5. Step 5: Solve for x
   x = 12,114,826,524.81/93,468.87
6. Step 6: Final answer
   x = 129,613.49