Finding the Fourth Proportional to 46,080.01, 69,139.46 and 42,402.21

Step by Step Solution

1. Step 1: Write the proportion equation
   46,080.01 : 69,139.46 = 42,402.21 : x
2. Step 2: Convert to fraction form
   46,080.01/69,139.46 = 42,402.21/x
3. Step 3: Cross multiply
   46,080.01x = 69,139.46 × 42,402.21
4. Step 4: Simplify right side
   46,080.01x = 2,931,665,902.21
5. Step 5: Solve for x
   x = 2,931,665,902.21/46,080.01
6. Step 6: Final answer
   x = 63,621.21