Finding the Fourth Proportional to 56,191.39, 77,544.27 and 30,697.99

Step by Step Solution

1. Step 1: Write the proportion equation
   56,191.39 : 77,544.27 = 30,697.99 : x
2. Step 2: Convert to fraction form
   56,191.39/77,544.27 = 30,697.99/x
3. Step 3: Cross multiply
   56,191.39x = 77,544.27 × 30,697.99
4. Step 4: Simplify right side
   56,191.39x = 2,380,453,031.16
5. Step 5: Solve for x
   x = 2,380,453,031.16/56,191.39
6. Step 6: Final answer
   x = 42,363.31