Finding the Fourth Proportional to 62,140.07, 85,723.98 and 42,003.98

Step by Step Solution

1. Step 1: Write the proportion equation
   62,140.07 : 85,723.98 = 42,003.98 : x
2. Step 2: Convert to fraction form
   62,140.07/85,723.98 = 42,003.98/x
3. Step 3: Cross multiply
   62,140.07x = 85,723.98 × 42,003.98
4. Step 4: Simplify right side
   62,140.07x = 3,600,748,341.44
5. Step 5: Solve for x
   x = 3,600,748,341.44/62,140.07
6. Step 6: Final answer
   x = 57,945.68