Finding the Fourth Proportional to 76,080.33, 104,988.96 and 42,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,080.33 : 104,988.96 = 42,090.72 : x
2. Step 2: Convert to fraction form
   76,080.33/104,988.96 = 42,090.72/x
3. Step 3: Cross multiply
   76,080.33x = 104,988.96 × 42,090.72
4. Step 4: Simplify right side
   76,080.33x = 4,419,060,918.45
5. Step 5: Solve for x
   x = 4,419,060,918.45/76,080.33
6. Step 6: Final answer
   x = 58,084.14