Finding the Fourth Proportional to 88,031.80, 123,477.80 and 88,031.80

Step by Step Solution

1. Step 1: Write the proportion equation
   88,031.80 : 123,477.80 = 88,031.80 : x
2. Step 2: Convert to fraction form
   88,031.80/123,477.80 = 88,031.80/x
3. Step 3: Cross multiply
   88,031.80x = 123,477.80 × 88,031.80
4. Step 4: Simplify right side
   88,031.80x = 10,869,972,994.04
5. Step 5: Solve for x
   x = 10,869,972,994.04/88,031.80
6. Step 6: Final answer
   x = 123,477.80