Finding the Fourth Proportional to 140,346.84, 193,807.98 and 90,133.32

Step by Step Solution

1. Step 1: Write the proportion equation
   140,346.84 : 193,807.98 = 90,133.32 : x
2. Step 2: Convert to fraction form
   140,346.84/193,807.98 = 90,133.32/x
3. Step 3: Cross multiply
   140,346.84x = 193,807.98 × 90,133.32
4. Step 4: Simplify right side
   140,346.84x = 17,468,556,679.89
5. Step 5: Solve for x
   x = 17,468,556,679.89/140,346.84
6. Step 6: Final answer
   x = 124,467.05