Finding the Fourth Proportional to 42,070.05, 63,086.61 and 15,756.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,070.05 : 63,086.61 = 15,756.33 : x
2. Step 2: Convert to fraction form
   42,070.05/63,086.61 = 15,756.33/x
3. Step 3: Cross multiply
   42,070.05x = 63,086.61 × 15,756.33
4. Step 4: Simplify right side
   42,070.05x = 994,013,741.40
5. Step 5: Solve for x
   x = 994,013,741.40/42,070.05
6. Step 6: Final answer
   x = 23,627.59