Finding the Fourth Proportional to 56,994.96, 78,612.25 and 40,002.99

Step by Step Solution

1. Step 1: Write the proportion equation
   56,994.96 : 78,612.25 = 40,002.99 : x
2. Step 2: Convert to fraction form
   56,994.96/78,612.25 = 40,002.99/x
3. Step 3: Cross multiply
   56,994.96x = 78,612.25 × 40,002.99
4. Step 4: Simplify right side
   56,994.96x = 3,144,724,850.61
5. Step 5: Solve for x
   x = 3,144,724,850.61/56,994.96
6. Step 6: Final answer
   x = 55,175.49