Finding the Fourth Proportional to 62,154.57, 85,743.99 and 42,018.51

Step by Step Solution

1. Step 1: Write the proportion equation
   62,154.57 : 85,743.99 = 42,018.51 : x
2. Step 2: Convert to fraction form
   62,154.57/85,743.99 = 42,018.51/x
3. Step 3: Cross multiply
   62,154.57x = 85,743.99 × 42,018.51
4. Step 4: Simplify right side
   62,154.57x = 3,602,834,701.25
5. Step 5: Solve for x
   x = 3,602,834,701.25/62,154.57
6. Step 6: Final answer
   x = 57,965.72