Finding the Fourth Proportional to 62,499.94, 86,290.12 and 55,773.96

Step by Step Solution

1. Step 1: Write the proportion equation
   62,499.94 : 86,290.12 = 55,773.96 : x
2. Step 2: Convert to fraction form
   62,499.94/86,290.12 = 55,773.96/x
3. Step 3: Cross multiply
   62,499.94x = 86,290.12 × 55,773.96
4. Step 4: Simplify right side
   62,499.94x = 4,812,741,701.28
5. Step 5: Solve for x
   x = 4,812,741,701.28/62,499.94
6. Step 6: Final answer
   x = 77,003.94