Finding the Fourth Proportional to 56,384.69, 77,807.52 and 30,885.96

Step by Step Solution

1. Step 1: Write the proportion equation
   56,384.69 : 77,807.52 = 30,885.96 : x
2. Step 2: Convert to fraction form
   56,384.69/77,807.52 = 30,885.96/x
3. Step 3: Cross multiply
   56,384.69x = 77,807.52 × 30,885.96
4. Step 4: Simplify right side
   56,384.69x = 2,403,159,950.42
5. Step 5: Solve for x
   x = 2,403,159,950.42/56,384.69
6. Step 6: Final answer
   x = 42,620.79