Finding the Fourth Proportional to 55,899.34, 77,139.48 and 30,748.84

Step by Step Solution

1. Step 1: Write the proportion equation
   55,899.34 : 77,139.48 = 30,748.84 : x
2. Step 2: Convert to fraction form
   55,899.34/77,139.48 = 30,748.84/x
3. Step 3: Cross multiply
   55,899.34x = 77,139.48 × 30,748.84
4. Step 4: Simplify right side
   55,899.34x = 2,371,949,528.20
5. Step 5: Solve for x
   x = 2,371,949,528.20/55,899.34
6. Step 6: Final answer
   x = 42,432.51