Finding the Fourth Proportional to 56,155.98, 77,495.52 and 30,662.87

Step by Step Solution

1. Step 1: Write the proportion equation
   56,155.98 : 77,495.52 = 30,662.87 : x
2. Step 2: Convert to fraction form
   56,155.98/77,495.52 = 30,662.87/x
3. Step 3: Cross multiply
   56,155.98x = 77,495.52 × 30,662.87
4. Step 4: Simplify right side
   56,155.98x = 2,376,234,667.86
5. Step 5: Solve for x
   x = 2,376,234,667.86/56,155.98
6. Step 6: Final answer
   x = 42,314.90