Finding the Fourth Proportional to 56,019.95, 77,306.55 and 30,526.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,019.95 : 77,306.55 = 30,526.50 : x
2. Step 2: Convert to fraction form
   56,019.95/77,306.55 = 30,526.50/x
3. Step 3: Cross multiply
   56,019.95x = 77,306.55 × 30,526.50
4. Step 4: Simplify right side
   56,019.95x = 2,359,898,574.00
5. Step 5: Solve for x
   x = 2,359,898,574.00/56,019.95
6. Step 6: Final answer
   x = 42,126.04