Finding the Fourth Proportional to 56,155.32, 77,495.34 and 31,003.32

Step by Step Solution

1. Step 1: Write the proportion equation
   56,155.32 : 77,495.34 = 31,003.32 : x
2. Step 2: Convert to fraction form
   56,155.32/77,495.34 = 31,003.32/x
3. Step 3: Cross multiply
   56,155.32x = 77,495.34 × 31,003.32
4. Step 4: Simplify right side
   56,155.32x = 2,402,612,824.53
5. Step 5: Solve for x
   x = 2,402,612,824.53/56,155.32
6. Step 6: Final answer
   x = 42,785.13