Finding the Fourth Proportional to 62,465.64, 86,233.86 and 42,428.52

Step by Step Solution

1. Step 1: Write the proportion equation
   62,465.64 : 86,233.86 = 42,428.52 : x
2. Step 2: Convert to fraction form
   62,465.64/86,233.86 = 42,428.52/x
3. Step 3: Cross multiply
   62,465.64x = 86,233.86 × 42,428.52
4. Step 4: Simplify right side
   62,465.64x = 3,658,775,053.69
5. Step 5: Solve for x
   x = 3,658,775,053.69/62,465.64
6. Step 6: Final answer
   x = 58,572.60