Finding the Fourth Proportional to 56,152.59, 77,490.75 and 30,659.01

Step by Step Solution

1. Step 1: Write the proportion equation
   56,152.59 : 77,490.75 = 30,659.01 : x
2. Step 2: Convert to fraction form
   56,152.59/77,490.75 = 30,659.01/x
3. Step 3: Cross multiply
   56,152.59x = 77,490.75 × 30,659.01
4. Step 4: Simplify right side
   56,152.59x = 2,375,789,679.16
5. Step 5: Solve for x
   x = 2,375,789,679.16/56,152.59
6. Step 6: Final answer
   x = 42,309.53