Finding the Fourth Proportional to 56,019.71, 77,307.48 and 30,526.35

Step by Step Solution

1. Step 1: Write the proportion equation
   56,019.71 : 77,307.48 = 30,526.35 : x
2. Step 2: Convert to fraction form
   56,019.71/77,307.48 = 30,526.35/x
3. Step 3: Cross multiply
   56,019.71x = 77,307.48 × 30,526.35
4. Step 4: Simplify right side
   56,019.71x = 2,359,915,192.10
5. Step 5: Solve for x
   x = 2,359,915,192.10/56,019.71
6. Step 6: Final answer
   x = 42,126.52