Finding the Fourth Proportional to 56,322.55, 77,757.47 and 42,061.02

Step by Step Solution

1. Step 1: Write the proportion equation
   56,322.55 : 77,757.47 = 42,061.02 : x
2. Step 2: Convert to fraction form
   56,322.55/77,757.47 = 42,061.02/x
3. Step 3: Cross multiply
   56,322.55x = 77,757.47 × 42,061.02
4. Step 4: Simplify right side
   56,322.55x = 3,270,558,500.82
5. Step 5: Solve for x
   x = 3,270,558,500.82/56,322.55
6. Step 6: Final answer
   x = 58,068.37