Finding the Fourth Proportional to 42,090.84, 58,091.76 and 26,180.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,090.84 : 58,091.76 = 26,180.40 : x
2. Step 2: Convert to fraction form
   42,090.84/58,091.76 = 26,180.40/x
3. Step 3: Cross multiply
   42,090.84x = 58,091.76 × 26,180.40
4. Step 4: Simplify right side
   42,090.84x = 1,520,865,513.50
5. Step 5: Solve for x
   x = 1,520,865,513.50/42,090.84
6. Step 6: Final answer
   x = 36,132.93