Finding the Fourth Proportional to 56,051.38, 77,350.98 and 30,900.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,051.38 : 77,350.98 = 30,900.88 : x
2. Step 2: Convert to fraction form
   56,051.38/77,350.98 = 30,900.88/x
3. Step 3: Cross multiply
   56,051.38x = 77,350.98 × 30,900.88
4. Step 4: Simplify right side
   56,051.38x = 2,390,213,350.86
5. Step 5: Solve for x
   x = 2,390,213,350.86/56,051.38
6. Step 6: Final answer
   x = 42,643.26