Finding the Fourth Proportional to 56,155.88, 77,496.71 and 30,663.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,155.88 : 77,496.71 = 30,663.86 : x
2. Step 2: Convert to fraction form
   56,155.88/77,496.71 = 30,663.86/x
3. Step 3: Cross multiply
   56,155.88x = 77,496.71 × 30,663.86
4. Step 4: Simplify right side
   56,155.88x = 2,376,348,624.11
5. Step 5: Solve for x
   x = 2,376,348,624.11/56,155.88
6. Step 6: Final answer
   x = 42,317.00