Finding the Fourth Proportional to 62,886.96, 86,812.74 and 42,225.05

Step by Step Solution

1. Step 1: Write the proportion equation
   62,886.96 : 86,812.74 = 42,225.05 : x
2. Step 2: Convert to fraction form
   62,886.96/86,812.74 = 42,225.05/x
3. Step 3: Cross multiply
   62,886.96x = 86,812.74 × 42,225.05
4. Step 4: Simplify right side
   62,886.96x = 3,665,671,897.09
5. Step 5: Solve for x
   x = 3,665,671,897.09/62,886.96
6. Step 6: Final answer
   x = 58,289.86